Requirements for the organization of medical care for PC users. After two hours at the computer, the employer must provide a break! VIII

→ → 6 Electromagnetic immunity → 6.1 Non-ionizing electromagnetic fields and emissions PromExpertSECTION III. HEALTH AND SAFETY → II Occupational sanitation and hygiene → 2 Occupational health requirements for the location, design, construction, reconstruction and operation of production facilities ISO classifier13 PROTECTION OF THE ENVIRONMENT, PROTECTION OF HUMANS FROM ENVIRONMENTAL IMPACT. SAFETY → 13.180 Ergonomics ISO classifier35 INFORMATION TECHNOLOGIES. OFFICE MACHINES → 35.160 Microprocessor systems

Status: Partially cancelled. Decree of the Chief State Sanitary Doctor Russian Federation dated 06/21/2016 No. 81 "On the approval of SanPiN 2.2.4.3359-16" Sanitary and epidemiological requirements for physical factors in the workplace "is no longer valid Appendix 3
Document text:
Scanned copy of the official edition of the document: present in the commercial version of NormaCS
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Approved: Chief State Sanitary Doctor of the Russian Federation, 06/03/2003
Designation: SanPiN 2.2.2/2.4.1340-03
Name: Hygienic requirements for personal electronic computers and organization of work
Application area: Sanitary rules define sanitary and epidemiological requirements:
· to the design, manufacture and operation of domestic PCs used in production, education, everyday life, gaming machines based on PCs;
· to the operation of imported PCs used in production, education, everyday life and gaming complexes (automatic machines) based on PCs;
· to the design, construction and reconstruction of premises intended for the operation of all types of PCs, production equipment and gaming complexes (automatic machines) based on PCs;
· to the organization of workplaces with a PC, production equipment and gaming complexes (automatic machines) based on a PC.
Sanitary requirements apply to:
on the conditions and organization of work with a PC;
on computing electronic digital machines personal, portable; peripheral devices of computing systems (printers, scanners, keyboards, external modems, electrical computer network devices, information storage devices, blocks uninterruptible power supply etc.), information display devices (video display terminals (VDT) of all types) and gaming complexes based on a PC.
The requirements of sanitary rules do not apply to the design, manufacture and operation of:
household televisions and television game consoles;
· means of visual display of information of microcontrollers built into technological equipment;
· PC of vehicles;
· PC moving in the process of work.
A comment: Registered by the Ministry of Justice of the Russian Federation on June 10, 2003, registration number 4673.
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Workplace

Information Technology

Software

railways

mechanical properties

Ergonomic requirements

On the basis of the Federal Law "On the sanitary and epidemiological well-being of the population" dated March 30, 1999 N 52-FZ (Collected Legislation of the Russian Federation, 1999, N 14, Art. Federation of July 24, 2000 N 554 (Collected Legislation of the Russian Federation, 2000, N 31, Art. 3295), I decide:
1. Enact from June 30, 2003, the sanitary and epidemiological rules and regulations "Hygienic requirements for personal electronic computers and organization of work. SanPiN 2.2.2 / 2.4. 1340-03", approved by the Chief State Sanitary Doctor of the Russian Federation on May 30 2003.

G. Onishchenko

HYGIENIC REQUIREMENTS FOR PERSONAL ELECTRONIC COMPUTERS AND ORGANIZATION OF WORK

Sanitary and epidemiological rules and regulations SanPiN 2.2.2 / 2.4.1340-03

I. General provisions and scope

1.1. These state sanitary and epidemiological rules and regulations (hereinafter referred to as the Sanitary Rules) are developed in accordance with the Federal Law "On the sanitary and epidemiological well-being of the population of March 30, 1999 N 52-FZ (Collected Legislation of the Russian Federation, 1999, N 14, art. 1650 ) and the Regulations on State Sanitary and Epidemiological Rationing, approved by Decree of the Government of the Russian Federation of July 24, 2000 N 554 (Sobraniye Zakonodatelstva Rossiyskoy Federatsii, 2000, N 31, Art. 3295).
1.2. Sanitary rules are valid throughout the Russian Federation and establish sanitary and epidemiological requirements for personal electronic computers (PCs) and working conditions.
1.3. The requirements of the Sanitary Rules are aimed at preventing the adverse effects on human health of harmful factors of the production environment and the labor process when working with a PC.
1.4. These Sanitary Rules determine the sanitary and epidemiological requirements for:
- design, manufacture and operation of domestic PCs used in production, education, at home, in PC-based gaming machines;
- operation of imported PCs used in production, in training, at home and in gaming complexes (automatic machines) based on PCs;
- design, construction and reconstruction of premises intended for the operation of all types of PCs, production equipment and gaming complexes (automatic machines) based on PCs;
- organization of workplaces with a PC, production equipment and gaming complexes (automatic machines) based on a PC.
1.5. The requirements of the Sanitary Rules apply to:
- on the conditions and organization of work with a PC;
- on computing electronic digital machines personal, portable; peripheral devices of computing systems (printers, scanners, keyboards, external modems, electrical computer network devices, information storage devices, uninterruptible power supplies, etc.), information display devices (video display terminals (VDT) of all types) and gaming complexes based on a PC.
1.6. The requirements of the Sanitary Rules do not apply to the design, manufacture and operation of:
- household televisions and television game consoles;
- means of visual display of information of microcontrollers built into technological equipment;
- PC of vehicles;
- PC moving in the process of work.
1.7. Responsibility for the implementation of these Sanitary Rules rests with legal entities and individual entrepreneurs engaged in:
- development, production and operation of PCs, production equipment and gaming complexes based on PCs;
- design, construction and reconstruction of premises intended for the operation of PCs in industrial, administrative public buildings, as well as in educational, cultural and entertainment institutions.
1.8. individual entrepreneurs and legal entities in the process of production and operation of the PC, production control over compliance with these Sanitary Rules should be carried out.
1.9. Workplaces using a PC must comply with the requirements of these Sanitary Rules.

II. PC requirements

2.1. PCs must comply with the requirements of these Sanitary Rules, and each of their types is subject to sanitary and epidemiological examination with an assessment in testing laboratories accredited in the prescribed manner.
2.2. The list of products and controlled hygienic parameters of harmful and hazardous factors is presented in Appendix 1 (Table 1).
2.3. Permissible levels of sound pressure and sound levels generated by the PC should not exceed the values presented in Appendix 1 (Table 2).
2.4. Temporary allowable levels of electromagnetic fields (EMF) generated by the PC should not exceed the values presented in Appendix 1 (Table 3).
2.5. Permissible visual parameters of information display devices are presented in Appendix 1 (Table 4).
2.6. The concentration of harmful substances emitted by the PC into the indoor air should not exceed the maximum allowable concentrations (MAC) established for atmospheric air.
2.7. The exposure dose rate of soft X-ray radiation at any point at a distance of 0.05 m from the screen and the body of the VDT (on a cathode-ray tube) at any position of the adjusting devices should not exceed 1 μSv/hour (100 μR/hour).
2.8. The design of the PC should provide the ability to rotate the case in a horizontal and vertical plane with fixation in a given position to ensure frontal observation of the VDT screen. The design of the PC should provide for painting the case in soothing soft colors with diffuse light scattering. PC case, keyboard and other PC units and devices should have a matte surface with a reflection coefficient of 0.4 - 0.6 and not have shiny parts that can create glare.
2.9. The design of the VDT should provide for the regulation of brightness and contrast.
2.10. Documentation for the design, manufacture and operation of a PC should not contradict the requirements of these Sanitary Rules.

III. Requirements for premises for working with a PC

3.1. Premises for the operation of the PC must have natural and artificial lighting. Operation of the PC indoors without natural light is allowed only with appropriate justification and the presence of a positive sanitary-epidemiological conclusion issued in the prescribed manner.
3.2. Natural and artificial lighting must comply with the requirements of the current regulatory documentation. Windows in rooms where computer equipment is used should mainly be oriented to the north and northeast.
Window openings must be equipped with adjustable devices such as blinds, curtains, external visors, etc.
3.3. It is not allowed to place places for PC users in all educational and cultural and entertainment institutions for children and adolescents in the basement and basement.
3.4. The area per workplace for PC users with VDT based on a cathode ray tube (CRT) should be at least 6 m2, in the premises of cultural and entertainment institutions and with VDT based on flat discrete screens (liquid crystal, plasma) - 4.5 m2.
When using a PVEM with a CRT-based VDT (without auxiliary devices - a printer, scanner, etc.) that meets the requirements of international computer safety standards, with a duration of less than 4 hours a day, a minimum area of 4.5 m2 is allowed per user workplace (adult and students of higher professional education).
3.5. For interior decoration of the interior of the premises where the PC is located, diffuse-reflective materials with a reflection coefficient for the ceiling - 0.7 - 0.8 should be used; for walls - 0.5 - 0.6; for the floor - 0.3 - 0.5.
3.6. Polymeric materials are used for interior decoration of premises with a PC in the presence of a sanitary and epidemiological conclusion.
3.7. Premises where workplaces with PCs are located must be equipped with protective grounding (zeroing) in accordance with the technical requirements for operation.
3.8. You should not place workplaces with a PC near power cables and inputs, high-voltage transformers, technological equipment that interferes with the operation of the PC.

IV. Requirements for the microclimate, the content of air ions and harmful chemical substances in the air at workplaces equipped with a PC

4.1. In industrial premises, in which work using a PC is auxiliary, the temperature, relative humidity and the speed of air movement at workplaces must comply with the current sanitary standards for the microclimate of industrial premises.
4.2. In industrial premises in which work using a PC is the main one (control rooms, operator rooms, settlement rooms, cabins and control posts, computer rooms, etc.) and is associated with neuro-emotional stress, optimal microclimate parameters for work categories 1a and 1b should be provided in accordance with the current sanitary and epidemiological standards for the microclimate of industrial premises. At other workplaces, microclimate parameters should be maintained at an acceptable level that meets the requirements of the above standards.
4.3. In the premises of all types of educational and cultural and entertainment institutions for children and adolescents, where PCs are located, optimal microclimate parameters must be provided (Appendix 2).
4.4. In the premises equipped with a PC, a daily wet cleaning and systematic ventilation after each hour of work on the PC.
4.5. The levels of positive and negative air ions in the air of the premises where the PC is located must comply with the current sanitary and epidemiological standards.
4.6. The content of harmful chemicals in the air of industrial premises, in which work using a PC is auxiliary, should not exceed the maximum permissible concentrations of harmful substances in the air of the working area in accordance with the current hygienic standards.
4.7. The content of harmful chemicals in industrial premises where work using a PC is the main one (control rooms, operator rooms, settlement rooms, control rooms and control posts, computer rooms, etc.) should not exceed the maximum permissible concentrations of pollutants in atmospheric air populated areas in accordance with current hygienic standards.
4.8. The content of harmful chemicals in the air of rooms intended for the use of PCs in all types educational institutions, should not exceed the maximum allowable average daily concentrations for atmospheric air in accordance with the current sanitary and epidemiological standards.

V. Requirements for noise and vibration levels at workplaces equipped with a PC

5.1. In production premises when performing basic or auxiliary work using a PC, noise levels at workplaces should not exceed the maximum allowable values established for these types of work in accordance with the current sanitary and epidemiological standards.
5.2. In the premises of all educational and cultural and entertainment institutions for children and adolescents, where PCs are located, noise levels should not exceed the permissible values established for residential and public buildings.
5.3. When performing work using a PC in industrial premises, the vibration level should not exceed the permissible vibration values for workplaces (category 3, type "c") in accordance with the current sanitary and epidemiological standards.
In the premises of all types of educational and cultural and entertainment institutions in which PCs are operated, the vibration level should not exceed the permissible values for residential and public buildings in accordance with the current sanitary and epidemiological standards.
5.4. Noisy equipment (printing devices, servers, etc.), whose noise levels exceed the normative ones, should be located outside the premises with a PC.

VI. Requirements for lighting in workplaces equipped with a PC

6.1. Desktops should be placed so that the video display terminals are oriented sideways to the light openings so that natural light falls predominantly on the left.
6.2. Artificial lighting in the premises for the operation of the PC should be provided by a system of general uniform lighting. In industrial and administrative-public premises, in cases of predominant work with documents, combined lighting systems should be used (in addition to general lighting, local lighting fixtures are additionally installed to illuminate the area where documents are located).
6.3. Illumination on the surface of the table in the area where the working document is placed should be 300 - 500 lux. Lighting should not create glare on the screen surface. The illumination of the screen surface should not exceed 300 lux.
6.4. Direct glare from light sources should be limited, while the brightness of luminous surfaces (windows, lamps, etc.) in the field of view should not exceed 200 cd/m2.
6.5. Reflected gloss on working surfaces (screen, table, keyboard, etc.) should be limited by right choice types of lamps and location of workplaces in relation to sources of natural and artificial lighting, while the brightness of glare on the PC screen should not exceed 40 cd/m2 and the brightness of the ceiling should not exceed 200 cd/m2.
6.6. The glare index for sources of general artificial lighting in industrial premises should be no more than 20. The discomfort index in administrative and public premises should not exceed 40, in preschool and educational premises no more than 15.
6.7. The brightness of general lighting fixtures in the zone of radiation angles from 50 to 90 degrees with the vertical in the longitudinal and transverse planes should be no more than 200 cd / m2, the protective angle of the fixtures should be at least 40 degrees.
6.8. Local lighting fixtures must have a non-translucent reflector with a protective angle of at least 40 degrees.
6.9. It is necessary to limit the uneven distribution of brightness in the field of view of the PC user, while the ratio of brightness between working surfaces should not exceed 3:1 - 5:1, and between working surfaces and surfaces of walls and equipment 10:1.
6.10. As light sources in artificial lighting, mainly fluorescent lamps of the LB type and compact fluorescent lamps (CFLs) should be used. When arranging reflected lighting in industrial and administrative-public premises, the use of metal halide lamps is allowed. Incandescent lamps, including halogen lamps, may be used in local lighting fixtures.
6.11. To illuminate rooms with a PC, lamps with mirrored parabolic gratings equipped with electronic ballasts (electronic ballasts) should be used. It is allowed to use multi-lamp luminaires with electromagnetic ballasts (electronic ballasts) consisting of an equal number of leading and lagging branches.
The use of luminaires without diffusers and shielding grilles is not allowed.
In the absence of luminaires with electronic ballasts, lamps of multi-lamp luminaires or adjacent general lighting luminaires should be switched on to different phases of a three-phase network.
6.12. General lighting when using fluorescent lamps should be performed in the form of solid or intermittent lines of lamps located on the side of the workplaces, parallel to the user's line of sight with a row arrangement of video display terminals. With a perimeter arrangement of computers, the lines of lamps should be located localized above the desktop closer to its front edge facing the operator.
6.13. The safety factor (Kz) for lighting installations for general lighting should be taken equal to 1.4.
6.14. The ripple factor should not exceed 5%.
6.15. To ensure the normalized values of illumination in the premises for the use of PCs, it is necessary to clean the glass of window frames and lamps at least twice a year and timely replace burned-out lamps.

VII. Requirements for the levels of electromagnetic fields at workplaces equipped with a PC

7.1. Temporary permissible levels of EMF generated by PCs at users' workplaces, as well as in the premises of educational, preschool and cultural and entertainment institutions, are presented in Appendix 2 (Table 1).
7.2. The methodology for instrumental control of EMF levels at the workplaces of PC users is presented in Appendix 3.

VIII. Requirements for the visual parameters of the VDT, controlled
in the workplace

8.1. The maximum permissible values of the visual parameters of the VDT, controlled at the workplace, are presented in Appendix 2 (Table 3).

IX. General requirements for the organization of workplaces for PC users

9.1. When placing workstations with a PC, the distance between workstations with video monitors (in the direction of the rear surface of one video monitor and the screen of another video monitor) must be at least 2.0 m, and the distance between the side surfaces of video monitors must be at least 1.2 m.
9.2. Workplaces with a PC in rooms with sources of harmful production factors should be placed in isolated cabins with organized air exchange.
9.3. Workplaces with a PC when performing creative work, requiring significant mental stress or high concentration of attention, it is recommended to isolate from each other with partitions 1.5 - 2.0 m high.
9.4. The video monitor screen should be at a distance of 600-700 mm from the user's eyes, but not closer than 500 mm, taking into account the size of alphanumeric characters and symbols.
9.5. The design of the desktop should provide optimal placement on the working surface of the equipment used, taking into account its quantity and design features the nature of the work to be done. In this case, it is allowed to use desktops of various designs that meet modern requirements ergonomics. The desktop surface should have a reflection coefficient of 0.5-0.7.
9.6. The design of the working chair (chair) should ensure the maintenance of a rational working posture when working on a PC, allow changing the posture in order to reduce the static tension of the muscles of the neck-shoulder region and the back to prevent the development of fatigue. The type of work chair (armchair) should be chosen taking into account the height of the user, the nature and duration of work with a PC.
The working chair (armchair) must be lifting and swivel, adjustable in height and angle of inclination of the seat and back, as well as the distance of the back from the front edge of the seat, while the adjustment of each parameter must be independent, easy to carry out and have a secure fit.
9.7. The surface of the seat, back and other elements of the chair (chair) should be semi-soft, with a non-slip, slightly electrified and breathable coating that provides easy cleaning from dirt.

X. Requirements for the organization and equipment of workplaces with a PC for adult users

10.1. The height of the working surface of the table for adult users should be adjusted within 680-800 mm; if this is not possible, the height of the working surface of the table should be 725 mm.
10.2. The modular dimensions of the working surface of the table for a PC, on the basis of which the structural dimensions should be calculated, should be considered: width 800, 1000, 1200 and 1400 mm, depth 800 and 1000 mm with its unregulated height equal to 725 mm.
10.3. The work table must have legroom at least 600 mm high, at least 500 mm wide, at least 450 mm deep at the knees and at least 650 mm at the level of outstretched legs.
10.4. The design of the work chair should provide:
- width and depth of the seat surface not less than 400 mm;
- seat surface with rounded front edge;
- adjustment of the height of the seat surface within 400 - 550 mm and tilt angles forward up to 15 degrees, and back up to 5 degrees;
- the height of the supporting surface of the backrest is 300 20 mm, the width is not less than 380 mm and the radius of curvature of the horizontal plane is 400 mm;
- the angle of inclination of the backrest in the vertical plane within 30 degrees;
- adjustment of the backrest distance from the front edge of the seat within 260 - 400 mm;
- stationary or removable armrests with a length of at least 250 mm and a width of 50 - 70 mm;
- adjustment of the armrests in height above the seat within 230-30 mm and the internal distance between the armrests within 350-500 mm.
10.5. The workplace of the PC user should be equipped with a footrest with a width of at least 300 mm, a depth of at least 400 mm, height adjustment up to 150 mm and an angle of inclination of the support surface of the stand up to 20 . The surface of the stand must be corrugated and have a 10 mm high edge along the front edge.
10.6. The keyboard should be placed on the table surface at a distance of 100 - 300 mm from the edge facing the user or on a special height-adjustable work surface separated from the main tabletop.

XI. Requirements for the organization and equipment of workplaces with a PC for students in general educational institutions and institutions of primary and higher professional education

11.1. Premises for classes are equipped with single tables designed to work with a PC.
11.2 The design of a single table for working with a PC should include:
- two separate surfaces: one horizontal for placing a PC with smooth adjustment in height within 520 - 760 mm and the second - for a keyboard with smooth adjustment in height and tilt angle from 0 to 15 degrees with reliable fixation in the optimal working position (12-15 degrees);
- the width of the surfaces for the VDT and the keyboard is at least 750 mm (the width of both surfaces must be the same) and the depth is at least 550 mm;
- support of surfaces for a PC or VDT and for a keyboard on a riser, in which there should be power supply wires and a cable local network. The base of the riser should be aligned with the footrest;
- lack of boxes;
- increasing the width of surfaces up to 1200 mm when equipping the workplace with a printer.
11.3. The height of the edge of the table facing the person working with the PC and the height of the legroom should correspond to the height of students in shoes (Appendix 4).
11.4. If there is a high table and chair that does not match the height of the students, a height-adjustable footrest should be used.
11.5. The line of sight should be perpendicular to the center of the screen and its optimal deviation from the perpendicular passing through the center of the screen in the vertical plane should not exceed 5 degrees, the allowable 10 degrees.
11.6. A workplace with a PC is equipped with a chair, the main dimensions of which must correspond to the growth of students in shoes (Appendix 5).

XII. Requirements for equipment and organization of premises with a PC for children up to school age

12.1. Premises for classes are equipped with single tables designed to work with a PC.
12.2. The design of a single table should consist of two parts or tables connected together: on one surface of the table there is a VDT, on the other - a keyboard.
The design of the table for placing a PC should include:
- smooth and easy height adjustment with reliable fixation of the horizontal surface for the video monitor within 460 - 520 mm with a depth of at least 550 mm and a width of at least 600 mm;
- the ability to smoothly and easily change the angle of inclination of the surface for the keyboard from 0 to 10 degrees, with secure fixation;
- the width and depth of the surface under the keyboard must be at least 600 mm;
- smooth without recesses the surface of the table for the keyboard;
- lack of boxes;
- legroom under the table above the floor at least 400 mm. The width is determined by the design of the table.
12.3. The dimensions of chairs for classes are given in Appendix 5. Replacement of chairs with stools or benches is not allowed.
12.4. The chair seat surface should be easy to disinfect.

XIII. Requirements for the organization of medical care for PC users

13.1. Persons working with a PC for more than 50% of their working time (professionally associated with the operation of a PC) must undergo mandatory preliminary medical examinations upon admission to work and periodic medical examinations in the prescribed manner.
13.2. From the time of pregnancy, women are transferred to work not related to the use of a PC, or the time for working with a PC is limited for them (no more than 3 hours per work shift), subject to the hygiene requirements established by these Sanitary Rules. Employment of pregnant women should be carried out in accordance with the legislation of the Russian Federation.
13.3. Medical examination of students of higher educational institutions, students of secondary specialized educational institutions, children of preschool and school age in order to establish contraindications to work with a PC is carried out in the prescribed manner.

XIV. Requirements for conducting state sanitary and epidemiological supervision and production control

14.1. State sanitary and epidemiological supervision over the production and operation of personal computers is carried out in accordance with these Sanitary Rules.
14.2. It is not allowed to sell and operate on the territory of the Russian Federation types of personal computers that do not have a sanitary and epidemiological conclusion.
14.3. Instrumental control over compliance with the requirements of these Sanitary Rules is carried out in accordance with the current regulatory documentation.
14.4. Production control over compliance with the Sanitary Rules is carried out by the manufacturer and supplier of the PC, as well as enterprises and organizations operating the PC in the prescribed manner, in accordance with the current sanitary rules and other regulatory documents.

Annex 1

List of products and controlled hygiene parameters

Table 1

N	Product type	OKP code	Controlled hygiene parameters
1	Electronic digital computing machines, personal electronic digital computing machines (including portable computers)	40 1300, 40 1350, 40 1370	Levels of electromagnetic fields (EMF), acoustic noise, concentration of harmful substances in the air, visual indicators of VDT, soft X-ray radiation*
2	Peripheral devices: printers, scanners, modems, network devices, uninterruptible power supplies, etc.	40 3000	EMF levels, acoustic noise, concentration of harmful substances in the air
3	Information display devices (video display terminals)	40 3200	EMF levels, visual indicators, concentration of harmful substances in the air, soft X-rays*
4	Gaming machines using PC	96 8575	EMF levels, acoustic noise, concentration of harmful substances in the air, visual indicators of VDT, soft X-ray radiation*

* Soft X-ray control is performed only for video display terminals using cathode ray tubes.

Permissible values of sound pressure levels in octave frequency bands and sound level generated by PC

table 2

Sound level and sound pressure levels are measured at a distance of 50 cm from the surface of the equipment and at the height of the sound source(s).
Temporary allowable levels of EMF generated by PC

Table 3

Permissible visual parameters of information display devices

Table 4

N	Options	Valid values
1	Brightness white field	Not less than 35 cd/sq.m
2	Uneven brightness of the working field	No more than 20%
3	Contrast (for monochrome mode)	At least 3:1
4	Temporal image instability (unintentional change over time in the brightness of an image on a display screen)	Should not be fixed
5	Spatial image instability (unintentional changes in the position of image fragments on the screen)	Not more than 2 10-4L, where L is the design observation distance, mm

For CRT displays, the image refresh rate must be at least 75 Hz for all screen resolution modes guaranteed by the regulatory documentation for a particular type of display and at least 60 Hz for displays on discrete flat screens (LCD, plasma, etc.).

Annex 2
(mandatory)

Temporary permissible levels of EMF generated by PC at workplaces

Table 1

Optimal microclimate parameters in all types of educational and preschool premises using a PC

table 2

Visual parameters of VDT controlled at workplaces

Table 3

Annex 3
(mandatory)

Methods of instrumental control and hygienic assessment of the levels of electromagnetic fields in the workplace

1. General Provisions

1.1. Instrumental control of the electromagnetic environment at the workplaces of PC users is carried out:
- when putting a PC into operation and organizing new and reorganizing jobs;
- after carrying out organizational and technical measures aimed at normalizing the electromagnetic environment;
- at certification of workplaces according to working conditions;
- at the request of enterprises and organizations.
1.2. Instrumental control is carried out by the SSES bodies and (or) testing laboratories (centers) accredited in the prescribed manner.

2. Requirements for measuring instruments

2.1. Instrumental control of EMF levels should be carried out by devices with an allowable basic relative measurement error of 20%, included in the State Register of Measuring Instruments and having valid certificates of state verification.
2.2. Preference should be given to meters with isotropic transducer antennas.

3. Preparation for instrumental control

3.1. Draw up a plan (sketch) for the placement of workplaces for PC users in the room.
3.2. Enter in the protocol information about the equipment of the workplace - the names of PC devices, manufacturers, models and factory (serial) numbers.
3.4. Enter in the protocol information about the presence of a sanitary-epidemiological conclusion on a PC and near-screen filters (if any).
3.5. Set on the VDT screen a typical image for this type of work (text, graphics, etc.).
3.6. When taking measurements, all computer equipment, VDT and other electrical equipment used for work, located in this room, must be turned on.
3.7. Measurements of the parameters of the electrostatic field should be carried out no earlier than 20 minutes after turning on the PC.

4. Taking measurements

4.1. Measurement of the levels of alternating electric and magnetic fields, static electric fields at a workplace equipped with a PC is carried out at a distance of 50 cm from the screen at three levels at a height of 0.5 m, 1.0 m and 1.5 m

5. Hygiene assessment EMF levels in workplaces

5.1. Hygienic assessment of measurement results should be carried out taking into account the error of the metrological control tool used.
5.2. If at the surveyed workplace equipped with a PC, the intensity of electrical and / or magnetic field in the range of 5 - 2000 Hz exceeds the values given in Table 5, it is necessary to measure the background levels of power frequency EMF (with the equipment turned off). The background level of the electric field with a frequency of 50 Hz should not exceed 500 V/m. The background levels of the magnetic field induction should not exceed the values that cause violations of the requirements for the visual parameters of the VDT (table 6).

Appendix 4
(mandatory)

The height of a single table for classes with a PC

Note: The legroom width and depth are determined by the design of the table.

Annex 5
(mandatory)

The main dimensions of the chair for pupils and students

Chair options	Height of pupils and students in shoes, cm
Chair options	116-130	131-145	146-160	161-175	>175
Seat height above the floor, mm	300	340	380	420	460
Seat width, not less than, mm	270	290	320	340	360
Seat depth, mm	290	330	360	380	400
The height of the lower edge of the backrest above the seat, mm	130	150	160	170	190
The height of the upper edge of the backrest above the seat, mm	280	310	330	360	400
Back deflection line height, not less than, mm	170	190	200	210	220
Bend radius of the front edge of the seat, mm	20-50
seat angle,	0-4
back angle,	95-108
Backrest radius in plan, not less than, mm	300

Appendix 6
(mandatory)

Sizes of a chair for classes with a PC for children preschool age

Sanitary and epidemiological rules and regulations SanPiN 2.2.2 / 2.4.1340-03 "Hygienic requirements for personal electronic computers and organization of work" (entered into force on June 30, 2003 by the Decree of the Chief State Sanitary Doctor of the Russian Federation of June 3, 2003 . N 118) are today the main regulatory document for safe work on a computer.

SanPiN 2.2.2 / 2.4.1340-03 contain sanitary and hygienic requirements for PCs in general and for displays in particular, requirements for premises where PCs are operated, microclimate, acoustic noise and vibrations, lighting, organization and equipment of workplaces with VDT and PC for both adult users and children.

You can easily find the full text of this document on the Internet by typing "SanPiN 2.2.2 / 2.4.1340-03" in any search engine. We bring to your attention the most important, in our opinion, provisions of this document. with our comments (in italics).

Sanitary and epidemiological rules and regulations SanPiN 2.2.2 / 2.4.1340-03
"Hygienic requirements for personal electronic computers and organization of work" (excerpts and comments)

I. General provisions and scope

1.2. Sanitary rules are valid throughout the Russian Federation and establish sanitary and epidemiological requirements for personal electronic computers (PCs) and working conditions.

1.3. The requirements of the Sanitary Rules are aimed at preventing the adverse effects on human health of harmful factors of the production environment and the labor process when working with a PC.

1.4. These Sanitary Rules determine the sanitary and epidemiological requirements for:
- design, manufacture and operation of domestic PCs used in production, education, at home, in PC-based gaming machines;
- operation of imported PCs used in production, in training, at home and in gaming complexes (automatic machines) based on PCs;
- design, construction and reconstruction of premises intended for the operation of all types of PCs, production equipment and gaming complexes (automatic machines) based on PCs;
- organization of workplaces with a PC, production equipment and gaming complexes (automatic machines) based on a PC.

1.5. The requirements of the Sanitary Rules apply to:
- on the conditions and organization of work with a PC;
- on computing electronic digital machines personal, portable;
- peripheral devices of computing systems (printers, scanners, keyboards, external modems, electrical computer network devices, information storage devices, uninterruptible power supplies, etc.), information display devices (video display terminals (VDT) of all types) and gaming complexes based on a PC .

1.6. The requirements of the Sanitary Rules do not apply to the design, manufacture and operation of:
- household televisions and television game consoles;
- means of visual display of information of microcontrollers built into technological equipment;
- PC of vehicles;
- PC moving in the process of work.

1.7. Responsibility for the implementation of these Sanitary Rules rests with legal entities and individual entrepreneurs engaged in:
- development, production and operation of PCs, production equipment and gaming complexes based on PCs;
- design, construction and reconstruction of premises intended for the operation of PCs in industrial, administrative public buildings, as well as in educational, cultural and entertainment institutions.

1.8. Individual entrepreneurs and legal entities in the process of production and operation of PCs must exercise production control over compliance with these Sanitary Rules.
Pay attention to this! The implementation of these rules must be ensured by the heads of all enterprises, including private ones, as well as individual entrepreneurs.

1.9. Workplaces using a PC must comply with the requirements of these Sanitary Rules.

II. PC requirements

2.1. PCs must comply with the requirements of these sanitary rules and each type is subject to sanitary and epidemiological examination with an assessment in testing laboratories accredited in the prescribed manner.

2.2. The list of products and controlled hygienic parameters of harmful and hazardous factors is presented in Appendix 1 (Table 1).

2.3. Permissible levels of sound pressure and sound levels generated by the PC should not exceed the values presented in Appendix 1 (Table 2).

2.4. Temporary permissible levels of electromagnetic fields (EMF) generated by the PC should not exceed the values presented in Appendix 1 (Table 3).

2.5. Permissible visual parameters of information display devices are presented in Appendix 1 (Table 4).

2.6. The concentration of harmful substances emitted by the PC into the indoor air should not exceed the maximum allowable concentrations (MAC) established for atmospheric air.

2.7. The exposure dose rate of soft X-ray radiation at any point at a distance of 0.05 m from the screen and the body of the VDT (on a cathode-ray tube) at any position of the adjusting devices should not exceed 1 μSv / hour (100 μR / hour).

2.8. The design of the PC should provide the ability to rotate the case in a horizontal and vertical plane with fixation in a given position to ensure frontal observation of the VDT screen. The design of the PC should provide for painting the case in soothing soft colors with diffuse light scattering. PC case, keyboard and other PC units and devices should have a matte surface with a reflection coefficient of 0.4 - 0.6 and not have shiny parts that can create glare.

2.9. The design of the VDT should provide for the regulation of brightness and contrast.

2.10. Documentation for the design, manufacture and operation of a PC should not contradict the requirements of these sanitary rules.

III. Requirements for premises for working with a PC

3.1. Premises for the operation of the PC must have natural and artificial lighting. The operation of a PC in rooms without natural light is allowed only with appropriate justification and the presence of a positive sanitary and epidemiological conclusion issued in the prescribed manner.

3.2. Natural and artificial lighting must comply with the requirements of the current regulatory documentation. Windows in rooms where computer equipment is used should mainly be oriented to the north and northeast. Window openings must be equipped with adjustable devices such as blinds, curtains, external visors, etc.

3.3. It is not allowed to place places for PC users in all educational and cultural and entertainment institutions for children and adolescents in the basement and basement.

3.4. The area per workplace for PC users with VDT based on a cathode ray tube (CRT) should be at least 6 m2, in the premises of cultural and entertainment institutions and with VDT based on flat discrete screens (liquid crystal, plasma) - 4.5 m2.

When using PVEM with VDT based on CRT (without auxiliary devices - printer, scanner, etc.) that meet the requirements of international computer safety standards, with a duration of less than 4 hours a day, a minimum area of 4.5 m2 per user workplace is allowed (adults and students of higher professional education).

3.5. For interior decoration of the interior of the premises where the PC is located, diffuse-reflective materials with a reflection coefficient for the ceiling of 0.7-0.8 should be used; for walls - 0.5-0.6; for the floor - 0.3-0.5.

3.6. Polymeric materials are used for interior decoration of premises with a PC in the presence of a sanitary and epidemiological conclusion.

3.7. Premises where workplaces with PCs are located must be equipped with protective grounding (zeroing) in accordance with the technical requirements for operation.

3.8. You should not place workplaces with a PC near power cables and inputs, high-voltage transformers, technological equipment that interferes with the operation of the PC.

IV. Requirements for the microclimate, the content of air ions and harmful chemicals in the air at workplaces equipped with a PC

4.1. In industrial premises, in which work using a PC is auxiliary, the temperature, relative humidity and air velocity at the workplace must comply with the current sanitary standards for the microclimate of industrial premises.

4.2. In industrial premises in which work using a PC is the main one (control rooms, operator rooms, settlement rooms, cabins and control posts, computer rooms, etc.) and is associated with neuro-emotional stress, optimal microclimate parameters for work categories 1a and 1b should be provided in accordance with the current sanitary and epidemiological standards for the microclimate of industrial premises. At other workplaces, microclimate parameters should be maintained at an acceptable level that meets the requirements of the above standards.

4.3. In the premises of all types of educational and cultural and entertainment institutions for children and adolescents, where PCs are located, optimal microclimate parameters must be provided (Appendix 2).

4.4. In the premises equipped with a PC, daily wet cleaning and systematic ventilation are carried out after each hour of work on the PC.

4.5. The levels of positive and negative air ions in the air of the premises where the PC is located must comply with the current sanitary and epidemiological standards.

4.7. The content of hazardous chemicals in industrial premises where work using a PC is the main one (control rooms, operator rooms, settlement rooms, control rooms and control posts, computer rooms, etc.) should not exceed the maximum permissible concentrations of pollutants in the atmospheric air of populated areas in in accordance with current hygiene regulations.

V. Requirements for noise and vibration levels at workplaces equipped with a PC

5.1. In production premises, when performing main or auxiliary work using a PC, noise levels at workplaces should not exceed the maximum allowable values established for these types of work in accordance with the current sanitary and epidemiological standards.

5.2. In the premises of all educational and cultural and entertainment institutions for children and adolescents, where PCs are located, noise levels should not exceed the permissible values established for residential and public buildings.

5.3. When performing work using a PC in industrial premises, the vibration level should not exceed the permissible vibration values for workplaces (category 3, type "c") in accordance with the current sanitary and epidemiological standards. In the premises of all types of educational and cultural and entertainment institutions in which PCs are operated, the vibration level should not exceed the permissible values for residential and public buildings in accordance with the current sanitary and epidemiological standards.

5.4. Noisy equipment (printing devices, servers, etc.), whose noise levels exceed the normative ones, should be located outside the premises with a PC.

VI. Requirements for lighting in workplaces equipped with a PC

6.1. Desktops should be placed so that the video display terminals are oriented sideways to the light openings so that natural light falls predominantly on the left.

6.2. Artificial lighting in the premises for the operation of the PC should be provided by a system of general uniform lighting. In industrial and administrative-public premises, in cases of predominant work with documents, combined lighting systems should be used (in addition to general lighting, local lighting fixtures are additionally installed to illuminate the area where documents are located).

6.3. Illumination on the surface of the table in the area where the working document is placed should be 300-500 lux. Lighting should not create glare on the screen surface. The illumination of the screen surface should not exceed 300 lux.

6.4. Direct glare from light sources should be limited, while the brightness of luminous surfaces (windows, lamps, etc.) in the field of view should not exceed 200 cd/m2.

6.5. It is necessary to limit the reflected brilliance on work surfaces (screen, table, keyboard, etc.) due to the correct choice of types of lamps and the location of workplaces in relation to sources of natural and artificial lighting, while the brightness of glare on the PC screen should not exceed 40 cd/m2 and ceiling brightness should not exceed 200 cd/m2.

6.6. The glare index for sources of general artificial lighting in industrial premises should be no more than 20. The discomfort index in administrative and public premises should not exceed 40, in preschool and educational premises no more than 15.

6.7. The brightness of general lighting fixtures in the zone of radiation angles from 50 to 90 degrees with the vertical in the longitudinal and transverse planes should be no more than 200 cd / m2, the protective angle of the fixtures should be at least 40 degrees.

6.8. Local lighting fixtures must have a non-translucent reflector with a protective angle of at least 40 degrees.

6.9. It is necessary to limit the uneven distribution of brightness in the field of view of the user of the PC, while the ratio of brightness between the working surfaces should not exceed 3:1-5:1, and between the working surfaces and the surfaces of walls and equipment 10:1.

6.10. As light sources in artificial lighting, mainly fluorescent lamps of the LB type and compact fluorescent lamps (CFLs) should be used. When arranging reflected lighting in industrial and administrative-public premises, the use of metal halide lamps is allowed. Incandescent lamps, including halogen lamps, may be used in local lighting fixtures.

6.11. To illuminate rooms with a PC, lamps with mirrored parabolic gratings equipped with electronic ballasts (electronic ballasts) should be used. It is allowed to use multi-lamp luminaires with electromagnetic ballasts (electronic ballasts) consisting of an equal number of leading and lagging branches. The use of luminaires without diffusers and shielding grilles is not allowed. In the absence of luminaires with electronic ballasts, lamps of multi-lamp luminaires or adjacent general lighting luminaires should be switched on to different phases of a three-phase network.

6.12. General lighting when using fluorescent lamps should be performed in the form of solid or intermittent lines of lamps located on the side of the workplaces, parallel to the user's line of sight with a row arrangement of video display terminals. With a perimeter arrangement of computers, the lines of lamps should be located localized above the desktop closer to its front edge facing the operator.

6.13. The safety factor (Kz) for lighting installations for general lighting should be taken equal to 1.4.

6.14. The ripple factor should not exceed 5%.

6.15. To ensure the normalized values of illumination in the premises for the use of PCs, it is necessary to clean the glass of window frames and lamps at least twice a year and timely replace burned-out lamps.

VII. Requirements for the levels of electromagnetic fields at workplaces equipped with a PC

7.1. Temporary permissible levels of EMF created by PCs at users' workplaces, as well as in the premises of educational, preschool and cultural and entertainment institutions, are presented in Appendix 2 (Table 1).

7.2. The methodology for instrumental control of EMF levels at the workplaces of PC users is presented in Appendix 3.

VIII. Requirements for the visual parameters of VDT, controlled at the workplace

8.1. The maximum permissible values of the visual parameters of the VDT, controlled at the workplace, are presented in Appendix 2 (Table 3).

IX. General requirements for the organization of workplaces for PC users

9.2. Workplaces with a PC in rooms with sources of harmful production factors should be placed in isolated cabins with organized air exchange.

9.3. Workplaces with a PC when performing creative work that requires significant mental stress or high concentration of attention are recommended to be isolated from each other by partitions 1.5-2.0 m high.

9.4. The video monitor screen should be at a distance of 600-700 mm from the user's eyes, but not closer than 500 mm, taking into account the size of alphanumeric characters and symbols.

9.5. The design of the desktop should provide optimal placement on the working surface of the equipment used, taking into account its quantity and design features, the nature of the work performed. At the same time, it is allowed to use work tables of various designs that meet modern ergonomic requirements. The desktop surface should have a reflection coefficient of 0.5-0.7.

9.6. The design of the working chair (chair) should ensure the maintenance of a rational working posture when working on a PC, allow you to change your posture in order to reduce the static tension of the muscles of the neck-shoulder region and back to prevent the development of fatigue. The type of work chair (armchair) should be chosen taking into account the height of the user, the nature and duration of work with a PC.

The working chair (armchair) must be lifting and swivel, adjustable in height and angle of inclination of the seat and back, as well as the distance of the back from the front edge of the seat, while the adjustment of each parameter must be independent, easy to carry out and have a secure fit.

9.7. The surface of the seat, back and other elements of the chair (chair) should be semi-soft, with a non-slip, slightly electrified and breathable coating that provides easy cleaning from dirt.

X. Requirements for the organization and equipment of workplaces with a PC for adult users

10.1. The height of the working surface of the table for adult users should be adjusted within 680-800 mm; if this is not possible, the height of the working surface of the table should be 725 mm.

10.2. The modular dimensions of the working surface of the table for a PC, on the basis of which the structural dimensions should be calculated, should be considered: width 800, 1000, 1200 and 1400 mm, depth 800 and 1000 mm with its unregulated height equal to 725 mm.

10.3. The work table must have legroom at least 600 mm high, at least 500 mm wide, at least 450 mm deep at the knees and at least 650 mm at the level of outstretched legs.

10.4. The design of the work chair should provide:
- width and depth of the seat surface not less than 400 mm;
- seat surface with rounded front edge;
- adjustment of the height of the seat surface within 400-550 mm and tilt angles forward up to 15 degrees, and back up to 5 degrees;
- the height of the supporting surface of the backrest is 300+-20 mm, the width is not less than 380 mm and the radius of curvature of the horizontal plane is 400 mm;
- the angle of inclination of the backrest in the vertical plane within + -30 degrees;
- adjustment of the backrest distance from the front edge of the seat within 260-400 mm;
- stationary or removable armrests with a length of at least 250 mm and a width of 50-70 mm;
- adjustment of the armrests in height above the seat within 230 + -30 mm and the internal distance between the armrests within 350-500 mm.

10.5. The workplace of the PC user should be equipped with a footrest with a width of at least 300 mm, a depth of at least 400 mm, height adjustment up to 150 mm and an angle of inclination of the support surface of the stand up to 20 °. The surface of the stand must be corrugated and have a 10 mm high edge along the front edge.

10.6. The keyboard should be placed on the surface of the table at a distance of 100-300 mm from the edge facing the user or on a special, height-adjustable work surface, separated from the main tabletop.

XI. Requirements for the organization and equipment of workplaces with a PC for students in general educational institutions and institutions of primary and higher professional education

11.1. Premises for classes are equipped with single tables designed to work with a PC.

11.2 The design of a single table for working with a PC should include:
- two separate surfaces: one horizontal for placing a PC with smooth adjustment in height within 520-760 mm and the second for a keyboard with smooth adjustment in height and tilt angle from 0 to 15 degrees with secure fixation in the optimal working position (12-15 degrees );
- the width of the surfaces for the VDT and the keyboard is at least 750 mm (the width of both surfaces must be the same) and the depth is at least 550 mm;
- support of surfaces for a PC or VDT and for a keyboard on a riser, in which there should be power supply wires and a local network cable. The base of the riser should be aligned with the footrest;
- lack of boxes;
- increasing the width of surfaces up to 1200 mm when equipping the workplace with a printer.

11.3. The height of the edge of the table facing the person working with the PC and the height of the legroom should correspond to the height of students in shoes (Appendix 4).

11.4. If there is a high table and chair that does not match the height of the students, a height-adjustable footrest should be used.

11.5. The line of sight should be perpendicular to the center of the screen and its optimal deviation from the perpendicular passing through the center of the screen in the vertical plane should not exceed +-5 degrees, the allowable is +-10 degrees.

11.6. A workplace with a PC is equipped with a chair, the main dimensions of which must correspond to the growth of students in shoes (Appendix 5).

XII. Requirements for equipment and organization of premises with a PC for preschool children

12.1. Premises for classes are equipped with single tables designed to work with a PC.

12.2. The design of a single table should consist of two parts or tables connected together: on one surface of the table there is a VDT, on the other - a keyboard. The design of the table for placing a PC should include:
- smooth and easy height adjustment with reliable fixation of the horizontal surface for the video monitor within 460-520 mm with a depth of at least 550 mm and a width of at least 600 mm;
- the ability to smoothly and easily change the angle of inclination of the surface for the keyboard from 0 to 10 degrees, with secure fixation;
- the width and depth of the surface under the keyboard must be at least 600 mm;
- smooth without recesses the surface of the table for the keyboard;
- lack of boxes;
- legroom under the table above the floor at least 400 mm. The width is determined by the design of the table.

12.3. The dimensions of chairs for classes are given in Appendix 6. Replacement of chairs with stools or benches is not allowed.

12.4. The chair seat surface should be easy to disinfect.

XIII. Requirements for the organization of medical care for PC users

13.2. From the time of pregnancy, women are transferred to work not related to the use of a PC, or the time for working with a PC is limited for them (no more than 3 hours per work shift), subject to the hygiene requirements established by these sanitary rules. Employment of pregnant women should be carried out in accordance with the legislation of the Russian Federation.

13.3. Medical examination of students of higher educational institutions, students of secondary specialized educational institutions, children of preschool and school age in order to establish contraindications for working with a PC is carried out in the prescribed manner.

XIV. Requirements for State Sanitary and Epidemiological Surveillance and Production Control

14.1. State sanitary and epidemiological supervision over the production and operation of personal computers is carried out in accordance with these Sanitary Rules.

14.2. It is not allowed to sell and operate on the territory of the Russian Federation types of personal computers that do not have a sanitary and epidemiological conclusion.

14.3. Instrumental control over compliance with the requirements of these Sanitary Rules is carried out in accordance with the current regulatory documentation.

14.4. Production control over compliance with sanitary rules is carried out by the manufacturer and supplier of the PC, as well as enterprises and organizations operating the PC in the prescribed manner, in accordance with the current sanitary rules and other regulatory documents.

Hygienic requirements for electronic computers, as well as work with them, establishes. The Labor Code does not directly regulate this aspect, but Articles 107 and 109 require employers to allocate rest time for employees during the working day.

Do I need to pass a medical examination to work on a computer?

According to paragraph 13.1 of SanPiN 2.2.2 / 2.4.1340-03, employees who work at a computer for more than 50% of their working time must undergo mandatory preliminary and periodic medical examinations. The procedure for their conduct and organization is provided. As for pregnant employees, they must be transferred to types of work not related to computers at all, or contact with it should be reduced to three hours a day.

Fundamentals of secure computer work

First of all, it is worth remembering that a computer is an electrical appliance. This means that the measures for safe handling of it are the same as for any other electrical equipment. But besides this, working with a computer is associated with a long-term strain of vision and the musculoskeletal system. Uncontrolled handling of a computer can lead to visual impairment, circulatory disorders, problems with the spine, joints, and pinched nerve endings. That is why it is so important to take breaks in work.

The standard instruction on labor protection when working on a personal computer TOI R-45-084-01, approved by Order of the Ministry of Communications of the Russian Federation dated July 2, 2001 No. 162, distinguishes three types of activities related to computers. Depending on what the employee is doing, different durations of breaks are provided for him. Here are the groups:

A - reading information from the monitor - two breaks of 15 minutes each, not counting lunch;
B - typing - a break for 10 minutes once an hour;
B - creative work - a break for 15 minutes once an hour.

Requirements for premises for working with a PC

SanPiN 2.2.2/2.4.1340-03 contains hygienic requirements for premises with operators. Chapter 3 is devoted to this issue. normative act. The premises must meet the following requirements:

well lit;
not basement and not basement;
well ventilated;
each employee should have 4.5 m²;
equipped with grounding, etc.

Hygienic requirements for personal electronic computers are regulated by SanPiN 2.2.2 / 2.4.1340-03. Correct computers should not emit harmful substances into the air, be noisy, create a strong electromagnetic field, etc.

SanPiN 2.2.2/2.4.1340-03

" Hygienic requirements for personal electronic computers and organization of work"

I. General provisions and scope

1.2. Sanitary rules are valid throughout the Russian Federation and establish sanitary and epidemiological requirements for personal electronic computers (PCs) and working conditions.

1.3. The requirements of the Sanitary Rules are aimed at preventing the adverse effects on human health of harmful factors of the production environment and the labor process when working with a PC.

1.4. These Sanitary Rules determine the sanitary and epidemiological requirements for:

Design, manufacture and operation of domestic PCs used in production, education, at home, in PC-based gaming machines;

Operation of imported PCs used in production, in education, at home and in gaming complexes (automatic machines) based on PCs;

Design, construction and reconstruction of premises intended for the operation of all types of PCs, production equipment and gaming complexes (automatic machines) based on PCs;

Organization of workplaces with a PC, production equipment and gaming complexes (automatic machines) based on a PC.

1.5. The requirements of the Sanitary Rules apply to:

On the conditions and organization of work with a PC;

On computing electronic digital machines personal, portable; peripheral devices of computing systems (printers, scanners, keyboards, external modems, electrical computer network devices, information storage devices, uninterruptible power supplies, etc.), information display devices (video display terminals (VDT) of all types) and gaming complexes based on a PC.

1.6. The requirements of the Sanitary Rules do not apply to the design, manufacture and operation of:

Household televisions and television game consoles;

Means of visual display of information of microcontrollers built into technological equipment;

PC of vehicles;

PC moving in the process of work.

1.7. Responsibility for the implementation of these Sanitary Rules rests with legal entities and individual entrepreneurs engaged in:

Development, production and operation of PCs, production equipment and gaming complexes based on PCs;

Design, construction and reconstruction of premises intended for the operation of PCs in industrial, administrative public buildings, as well as in educational, cultural and entertainment institutions.

1.8. Individual entrepreneurs and legal entities in the process of production and operation of PCs must exercise production control over compliance with these Sanitary Rules.

1.9. Workplaces using a PC must comply with the requirements of these Sanitary Rules.

II. PC requirements

2.2. The list of products and controlled hygienic parameters of harmful and hazardous factors is presented in Appendix 1 (Table 1).

2.3. Permissible levels of sound pressure and sound levels generated by the PC should not exceed the values presented in Appendix 1 (Table 2).

2.4. Temporary allowable levels of electromagnetic fields (EMF) generated by the PC should not exceed the values presented in Appendix 1 (Table 3).

2.5. Permissible visual parameters of information display devices are presented in Appendix 1 (Table 4).

2.6. The concentration of harmful substances emitted by the PC into the indoor air should not exceed the maximum allowable concentrations (MAC) established for atmospheric air.

2.9. The design of the VDT should provide for the regulation of brightness and contrast.

2.10. Documentation for the design, manufacture and operation of a PC should not contradict the requirements of these sanitary rules.

III. Requirements for premises for working with a PC

Window openings must be equipped with adjustable devices such as blinds, curtains, external visors, etc.

3.3. It is not allowed to place places for PC users in all educational and cultural and entertainment institutions for children and adolescents in the basement and basement.

3.5. For interior decoration of the interior of the premises where the PC is located, diffuse-reflective materials with a reflection coefficient for the ceiling - 0.7 - 0.8 should be used; for walls - 0.5 - 0.6; for the floor - 0.3 - 0.5.

3.6. Polymeric materials are used for interior decoration of premises with a PC in the presence of a sanitary and epidemiological conclusion.

3.7. Premises where workplaces with PCs are located must be equipped with protective grounding (zeroing) in accordance with the technical requirements for operation.

3.8. You should not place workplaces with a PC near power cables and inputs, high-voltage transformers, technological equipment that interferes with the operation of the PC.

IV. Requirements for the microclimate, the content of air ions and harmful chemicals in the air at workplaces equipped with a PC

4.4. In the premises equipped with a PC, daily wet cleaning and systematic ventilation are carried out after each hour of work on the PC.

4.5. The levels of positive and negative air ions in the air of the premises where the PC is located must comply with the current sanitary and epidemiological standards.

V. Requirements for noise and vibration levels at workplaces equipped with a PC

In the premises of all types of educational and cultural and entertainment institutions in which PCs are operated, the vibration level should not exceed the permissible values for residential and public buildings in accordance with the current sanitary and epidemiological standards.

5.4. Noisy equipment (printing devices, servers, etc.), whose noise levels exceed the normative ones, should be located outside the premises with a PC.

VI. Requirements for lighting in workplaces equipped with a PC

6.1. Desktops should be placed so that the video display terminals are oriented sideways to the light openings so that natural light falls predominantly on the left.

6.3. Illumination on the surface of the table in the area where the working document is placed should be 300 - 500 lux. Lighting should not create glare on the screen surface. The illumination of the screen surface should not exceed 300 lux.

6.4. Direct glare from light sources should be limited, while the brightness of luminous surfaces (windows, lamps, etc.) in the field of view should not exceed 200 cd/m2.

6.6. The glare index for sources of general artificial lighting in industrial premises should be no more than 20.

The indicator of discomfort in administrative and public premises is no more than 40, in preschool and educational premises no more than 15.

6.8. Local lighting fixtures must have a non-translucent reflector with a protective angle of at least 40 degrees.

6.9. It is necessary to limit the uneven distribution of brightness in the field of view of the PC user, while the ratio of brightness between working surfaces should not exceed 3:1 - 5:1, and between working surfaces and surfaces of walls and equipment 10:1.

The use of luminaires without diffusers and shielding grilles is not allowed.

In the absence of luminaires with electronic ballasts, lamps of multi-lamp luminaires or adjacent general lighting luminaires should be switched on to different phases of a three-phase network.

6.13. The safety factor (Kz) for lighting installations for general lighting should be taken equal to 1.4.

6.14. The ripple factor should not exceed 5%.

VII. Requirements for the levels of electromagnetic fields at workplaces equipped with a PC

7.2. The methodology for instrumental control of EMF levels at the workplaces of PC users is presented in Appendix 3.

VIII. Requirements for the visual parameters of VDT, controlled at the workplace

8.1. The maximum permissible values of the visual parameters of the VDT, controlled at the workplace, are presented in Appendix 2 (Table 3).

IX. General requirements for the organization of workplaces for PC users

9.2. Workplaces with a PC in rooms with sources of harmful production factors should be placed in isolated cabins with organized air exchange.

9.4. The video monitor screen should be at a distance of 600 - 700 mm from the user's eyes, but not closer than 500 mm, taking into account the size of alphanumeric characters and symbols.

9.5. The design of the desktop should provide optimal placement on the working surface of the equipment used, taking into account its quantity and design features, the nature of the work performed.

At the same time, it is allowed to use work tables of various designs that meet modern ergonomic requirements. The desktop surface should have a reflection coefficient of 0.5 - 0.7.

9.7. The surface of the seat, back and other elements of the chair (chair) should be semi-soft, with a non-slip, slightly electrified and breathable coating that provides easy cleaning from dirt.

X. Requirements for the organization and equipment of workplaces with a PC for adult users

10.1. The height of the working surface of the table for adult users should be adjusted within 680 - 800 mm; if this is not possible, the height of the working surface of the table should be 725 mm.

10.3. The work table must have legroom at least 600 mm high, at least 500 mm wide, at least 450 mm deep at the knees and at least 650 mm at the level of outstretched legs.

10.4. The design of the work chair should provide:

The width and depth of the seat surface is at least 400 mm;

Seat surface with rounded front edge;

Height adjustment of the seat surface within 400 - 550 mm and tilt angles forward up to 15 degrees, and back up to 5 degrees;

The height of the supporting surface of the backrest is 300 + -20 mm, the width is at least 380 mm and the radius of curvature of the horizontal plane is 400 mm;

The angle of the backrest in the vertical plane within + -30 degrees;

Adjustment of the backrest distance from the front edge of the seat within 260 - 400 mm;

Fixed or removable armrests with a length of at least 250 mm and a width of 50 - 70 mm;

Adjustment of the armrests in height above the seat within 230 + -30 mm and the internal distance between the armrests within 350 -500 mm.

10.6. The keyboard should be placed on the table surface at a distance of 100 - 300 mm from the edge facing the user or on a special height-adjustable work surface separated from the main tabletop.

XI. Requirements for the organization and equipment of workplaces with a PC for students in general educational institutions and institutions of primary and higher professional education

11.1. Premises for classes are equipped with single tables designed to work with a PC.

11.2 The design of a single table for working with a PC should include:

Two separate surfaces: one horizontal for placing a PC with smooth adjustment in height within 520 - 760 mm and the second - for a keyboard with smooth adjustment in height and tilt angle from 0 to 15 degrees with reliable fixation in the optimal working position (12 - 15 degrees );

The width of the surfaces for the VDT and the keyboard is at least 750 mm (the width of both surfaces must be the same) and the depth is at least 550 mm;

Supporting surfaces for a PC or VDT and for a keyboard on a riser, in which there should be power wires and a local network cable.

The base of the riser should be aligned with the footrest;

Lack of boxes;

Increasing the width of surfaces up to 1200 mm when equipping the workplace with a printer.

11.3. The height of the edge of the table facing the person working with the PC and the height of the legroom should correspond to the height of students in shoes (Appendix 4).

11.4. If there is a high table and chair that does not match the height of the students, a height-adjustable footrest should be used.

11.6. A workplace with a PC is equipped with a chair, the main dimensions of which must correspond to the growth of students in shoes (Appendix 5).

XII. Requirements for equipment and organization of premises with a PC for preschool children

12.1. Premises for classes are equipped with single tables designed to work with a PC.

12.2. The design of a single table should consist of two parts or tables connected together: on one surface of the table there is a VDT, on the other - a keyboard.

The design of the table for placing a PC should include:

Smooth and easy height adjustment with reliable fixation of the horizontal surface for the video monitor within 460 - 520 mm with a depth of at least 550 mm and a width of at least 600 mm;

The ability to smoothly and easily change the angle of inclination of the surface for the keyboard from 0 to 10 degrees, with secure fixation;

The width and depth of the surface under the keyboard must be at least 600 mm;

Smooth without recesses the surface of the table for the keyboard;

Lack of boxes;

Legroom under the table above the floor is at least 400 mm.

The width is determined by the design of the table.

12.3. The dimensions of chairs for classes are given in Appendix 5. Replacement of chairs with stools or benches is not allowed.

12.4. The chair seat surface should be easy to disinfect.

XIII. Requirements for the organization of medical care for PC users

13.1. Persons working with a PC for more than 50% of their working time (professionally connected with the operation of a PC) must pass mandatory pre-employment and periodic

medical examinations in the prescribed manner.

14.1. State sanitary and epidemiological supervision over the production and operation of personal computers is carried out in accordance with these Sanitary Rules.

14.2. It is not allowed to sell and operate on the territory of the Russian Federation types of personal computers that do not have a sanitary and epidemiological conclusion.

14.3. Instrumental control over compliance with the requirements of these Sanitary Rules is carried out in accordance with the current regulatory documentation.

Annex 1

to SanPiN 2.2.2/2.4.1340-03

Table 1

List of products and controlled hygiene parameters

№	Product type	OKP code	Controlled hygiene parameters
1	Electronic digital computing machines, personal electronic digital computing machines (including portable computers)	40 1300,	Levels of electromagnetic fields (EMF), acoustic noise, concentration of harmful substances in the air, visual indicators of VDT, soft X-ray radiation*
2	Peripheral devices: printers, scanners, modems, network devices, uninterruptible power supplies	40 3000	EMF levels, acoustic noise, concentration of harmful substances in the air
3	Information display devices (video display terminals)	40 3200	EMF levels, visual indicators, concentration of harmful substances in the air, soft X-rays*
4	Gaming machines using PC	96 8575	EMF levels, acoustic noise, concentration of harmful substances in the air, visual indicators of VDT, soft X-ray radiation*

* Soft X-ray control is performed only for video display terminals using cathode ray tubes.

table 2

Permissible values of sound pressure levels in octave frequency bands and sound level generated by PC

Sound pressure levels in octave bands with geometric mean frequencies									Sound levels in dBA
31.5 Hz	63Hz	125 Hz	250 Hz	500Hz	1000 Hz	2000 Hz	4000 Hz	8000 Hz	Sound levels in dBA
86 dB	71 dB	61 dB	54 dB	49 dB	45 dB	42 dB	40 dB	38 dB	50

Measurement of sound level and sound pressure levels is carried out at a distance of 50 cm from the surface of the equipment and at the height of the sound source(s)

Table 3

Temporary allowable levels of EMF generated by PC

Table 4

Permissible visual parameters of information display devices

№	Options	Valid values
1	White field brightness	Not less than 35 cd/sq.m
2	Uneven brightness of the working field	Max ± 20%
3	Contrast (for monochrome mode)	3:1
4	Temporal image instability (unintentional change in the brightness of the display screen image over time)	Should not be fixed
5	Spatial image instability (unintentional change in the position of screen image fragments)	Not more than 2*10L -4L , where L is the observation distance

Annex 2

to SanPiN 2.2.2/2.4.1340-03

obligatory

Table 1

Temporary permissible levels of EMF generated by PC at workplaces

table 2

Optimal microclimate parameters in all types of educational and preschool premises using a PC

Table 3

Visual parameters of VDT controlled at workplaces

Annex 3

to SanPiN 2.2.2/2.4.1340-03

obligatory

Methods of instrumental control and hygienic assessment of the levels of electromagnetic fields in the workplace

1. General Provisions

1.1. Instrumental control of the electromagnetic environment at the workplaces of PC users is carried out:

When putting a PC into operation and organizing new and reorganizing jobs;

After carrying out organizational and technical measures aimed at normalizing the electromagnetic situation;

When attesting workplaces for working conditions;

At the request of enterprises and organizations.

1.2. Instrumental control is carried out by the SSES bodies and (or) testing laboratories (centers) accredited in the prescribed manner.

2. Requirements for measuring instruments

2.1. Instrumental control of EMF levels should be carried out by devices with an allowable basic relative measurement error of +-20%, included in the State Register of Measuring Instruments and having valid certificates of passing the State verification.

2.2. Preference should be given to meters with isotropic transducer antennas.

3. Preparation for instrumental control

3.1. Draw up a plan (sketch) for the placement of workplaces for PC users in the room.

3.2. Enter in the protocol information about the equipment of the workplace - the names of PC devices, manufacturers, models and factory (serial) numbers.

3.4. Enter in the protocol information about the presence of a sanitary-epidemiological conclusion on a PC and near-screen filters (if any).

3.5. Set on the VDT screen a typical image for this type of work (text, graphics, etc.).

3.6. When taking measurements, all computer equipment, VDT and other electrical equipment used for work, located in this room, must be turned on.

3.7. Measurements of the parameters of the electrostatic field should be carried out no earlier than 20 minutes after turning on the PC.

4. Taking measurements

5. Hygienic assessment of EMF levels in the workplace

5.1. Hygienic assessment of measurement results should be carried out taking into account the error of the metrological control tool used.

5.2. If at the surveyed workplace equipped with a PC, the intensity of the electric and / or magnetic field in the range of 5 - 2000 Hz exceeds the values \u200b\u200bgiven in Table 5, it is necessary to measure the background levels of industrial frequency EMF (with the equipment turned off). The background level of the electric field with a frequency of 50 Hz should not exceed 500 V/m. The background levels of the magnetic field induction should not exceed the values that cause violations of the requirements for the visual parameters of the VDT (table 6

Appendix 4

to SanPiN 2.2.2/2.4.1340-03

obligatory

Height of a single table for classes with BT

Growth since	Height above the floor, mm
Growth since	table surface	legroom, not less
116-130	520	400
131-145	580	520
146-160	640	580
161-175	700	640
above 175	760	700

Note: The legroom width and depth are determined by the design of the table.

The main dimensions of the chair for pupils and students

Chair options	Height of pupils and students in shoes, cm
Chair options	116-130	131-145	146-160	161-175	> 175
Seat height above the floor, mm	300	340	380	420	460
Seat width, not less than, mm	270	290	320	340	360
Seat depth, mm	290	330	360	380	400
The height of the lower edge of the backrest above the seat, mm	130	150	160	170	190
The height of the upper edge of the backrest above the seat, mm	280	310	330	360	400
Back deflection line height, not less than, mm	170	190	200	210	220
Bend radius of the front edge of the seat, mm	20-50
Seat tilt angle, °	0-4
Backrest angle, °	95-108
Backrest radius in plan, not less than, mm	300

Annex 5

to SanPiN 2.2.2/2.4.1340-03

obligatory

Chair sizes for preschool children for classes with BT

Chair options	Dimensions, not less than, mm
Seat height above floor	260
Seat width	250
Seat depth	260
The height of the lower edge of the backrest above the seat	120
The height of the upper edge of the backrest above the seat	250
Back deflection height	160
Seat front edge bending radius	20-50

Requirements for the organization of medical care for PC users. After two hours at the computer, the employer must provide a break! VIII

Sanitary and epidemiological rules and regulations SanPiN 2.2.2 / 2.4.1340-03 "Hygienic requirements for personal electronic computers and organization of work" (excerpts and comments)

I. General provisions and scope

II. PC requirements

III. Requirements for premises for working with a PC

IV. Requirements for the microclimate, the content of air ions and harmful chemicals in the air at workplaces equipped with a PC

V. Requirements for noise and vibration levels at workplaces equipped with a PC

VI. Requirements for lighting in workplaces equipped with a PC

VII. Requirements for the levels of electromagnetic fields at workplaces equipped with a PC

VIII. Requirements for the visual parameters of VDT, controlled at the workplace

IX. General requirements for the organization of workplaces for PC users

X. Requirements for the organization and equipment of workplaces with a PC for adult users

XI. Requirements for the organization and equipment of workplaces with a PC for students in general educational institutions and institutions of primary and higher professional education

XII. Requirements for equipment and organization of premises with a PC for preschool children

XIII. Requirements for the organization of medical care for PC users

XIV. Requirements for State Sanitary and Epidemiological Surveillance and Production Control

Do I need to pass a medical examination to work on a computer?

Fundamentals of secure computer work

Requirements for premises for working with a PC

SanPiN 2.2.2/2.4.1340-03

" Hygienic requirements for personal electronic computers and organization of work"

I. General provisions and scope

II. PC requirements

III. Requirements for premises for working with a PC

IV. Requirements for the microclimate, the content of air ions and harmful chemicals in the air at workplaces equipped with a PC

V. Requirements for noise and vibration levels at workplaces equipped with a PC

VI. Requirements for lighting in workplaces equipped with a PC

VII. Requirements for the levels of electromagnetic fields at workplaces equipped with a PC

VIII. Requirements for the visual parameters of VDT, controlled at the workplace

IX. General requirements for the organization of workplaces for PC users

X. Requirements for the organization and equipment of workplaces with a PC for adult users

XI. Requirements for the organization and equipment of workplaces with a PC for students in general educational institutions and institutions of primary and higher professional education

XII. Requirements for equipment and organization of premises with a PC for preschool children

List of products and controlled hygiene parameters

Temporary permissible levels of EMF generated by PC at workplaces

Methods of instrumental control and hygienic assessment of the levels of electromagnetic fields in the workplace

Height of a single table for classes with BT

Chair sizes for preschool children for classes with BT

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Sanitary and epidemiological rules and regulations SanPiN 2.2.2 / 2.4.1340-03
"Hygienic requirements for personal electronic computers and organization of work" (excerpts and comments)