GOST 12.1 003 noise general safety requirements. Noise levels for various types of work activities, taking into account the degree of labor intensity

INTERSTATE STANDARD

Occupational Safety Standards System

General safety requirements

Date of introduction 01.07 84

INFORMATION DATA

1 DEVELOPED by the All-Union Central Council of Trade Unions, the USSR State Committee for Construction, the Ministry of Railways, the USSR Academy of Medical Sciences, the USSR Ministry of Ferrous Metallurgy, the Ministry Agriculture USSR, Ministry of Health of the Ukrainian SSR, Ministry of Health of the RSFSR, USSR State Committee for Standards, Academy of Sciences of the USSR

DEVELOPERS

B.A. Noblemen; Yu.M. Vasiliev, Ph.D. tech. sciences; L.F. Lagunov, Ph.D. tech. Sciences: L.N. Pyatachkova, Ph.D. tech. sciences; IN AND. Kopylov; G.L. Osipov, Dr. Tech.. sciences; M.A. Porozhenko; E.Ya. Yudin, Doctor of Engineering. sciences; K.F. Kalmakhelidze, Ph.D. tech. sciences; Yu.P. Chepulsky, Ph.D. tech. sciences; G.A. Suvorov, dr med. sciences; L.N. Shkarinov, Dr. med. sciences; E.I. Denisov, Ph.D. tech. sciences; L.N. Klyachko, Ph.D. tech. sciences; D.B. Chekhomova, Ph.D. tech. sciences; A.I. Ponomarev, Ph.D. tech. sciences; V.E. Skibinsky; V.Z. Kleimenov, Ph.D. tech. sciences; V.V. Myasnikov; G.P. Saversky; T.A. Kochinashvili, Ph.D. tech. sciences; A.M. Nikolaishvili; N.I. Borodin, Ph.D. tech. sciences; V.F. Drobyshevskaya; G.I. Varnashov; A.A. Menshov, Dr. med. sciences; V.N. Soga; Yu.P. Paltsev, Ph.D. honey. sciences; A.V. Kolesnikova, Ph.D. honey, sciences; Sh.L. Zlotnik, Ph.D. tech. sciences; L.A. Potanin; N.P. Benevolenskaya, Dr. med. sciences; V.A. Shcherbakov; Yu.N. Kamensky, Ph.D. honey. sciences; A.I. Tsysar, Ph.D. honey. Sci.

2 APPROVED AND ENTERED INTO EFFECT by Resolution of the USSR State Committee on Standards dated 06.06.83 No. 2473

The standard corresponds to ST SEV 1930-79 in terms of permissible values of sound pressure levels and sound levels at workplaces of manufacturing enterprises and their measurements.

INSTEAD GOST 12.1.003-76

5 REFERENCED REGULATIVE AND TECHNICAL DOCUMENTS

	Item number, application	Designation of the referenced technical document	Item number, application
GOST 12.1.020-79	5.1	GOST 12.4.026-76	3.2
GOST 12.1.023-80	4.3	GOST 12.4.051-87	3.1, 3.2
GOST 12.1.024-81	5.2	GOST 12.4.095-80	5.1
GOST 12.1.025-81	5.2	GOST 17187-81	1.2, 1.3, 2.1
GOST 12.1.026-80	5.2	GOST 20296-81	5.1
GOST 12.1.027-80	5.2	GOST 23941-79	4.2, 4.4, 5.1, 5.2
GOST 12.1.028-80	5.2	GOST 27435-87	5.1
GOST 12.1.029-80	3.1	GOST 27436-87	5.1
GOST 12.1.050-86	5.1, Appendix 1	ST SEV 541-77	Annex 1
GOST 12.2.002-91	5.1

6 The validity period was lifted according to Protocol No. 3-93 of the Interstate Council for Standardization, Metrology and Certification (IUS 5-6-93)

7 REISSUE (September 1999) with Change No. 1, approved in December 1988 (IUS 3-89)

The standard establishes noise classification, characteristics and permissible noise levels in workplaces, General requirements to noise protection in the workplace, noise characteristics of machines, mechanisms, vehicles and other equipment (hereinafter referred to as machines) and noise measurements.

CLASSIFICATION

1.1. Based on the nature of the spectrum, noise should be divided into:

broadband with a continuous spectrum more than one octave wide;

tonal, in the spectrum of which there are pronounced discrete tones. The tonal nature of noise for practical purposes (when monitoring its parameters at workplaces) is determined by measuring in one-third octave frequency bands by the excess of the sound pressure level in one band over neighboring ones by at least 10 dB.

1.2. According to temporal characteristics, noise should be divided into:

constant, the sound level of which changes over time by no more than 5 dB over an 8-hour working day (work shift) A when measuring on the time characteristic of a “slow” sound level meter according to GOST 17187;

unstable, the sound level of which changes over time by more than 5 dB over an 8-hour working day (work shift) A when measuring on the time characteristic of a “slow” sound level meter according to GOST 17187.

1.3. Intermittent noise should be divided into:

time-fluctuating, the sound level of which continuously changes over time;

intermittent, the sound level of which changes stepwise (by 5 dB A or more), and the duration of the intervals during which the level remains constant is 1 s or more;

pulse, consisting of one or more sound signals, each lasting less than 1 s, with sound levels measured in dB A.I. and dB A respectively, on the time characteristics of the “impulse” and “slow” sound level meter according to GOST 17187, differ by no less than 7 dB.

CHARACTERISTICS AND ALLOWABLE NOISE LEVELS

AT THE WORKPLACE

2.1. Characteristics of constant noise in workplaces are sound pressure levels L in dB in octave bands with geometric mean frequencies 31.5, 63, 125, 250, 500, 1000, 2000, 4000, 8000 Hz, determined by the formula

Where p - root mean square value of sound pressure, Pa;

p 0 - initial sound pressure value. In the air R 0 = 2 ´10 -5 Pa.

Note. For an approximate assessment (for example, when checking by supervisory authorities, identifying the need for noise attenuation measures, etc.), it is allowed to take the sound level in dB as a characteristic of constant broadband noise in workplaces A, measured on the time characteristic of the “slow” sound level meter according to GOST 17187 and determined by the formula

Where R A - root mean square value of sound pressure taking into account the correction “A” of the sound level meter, Pa.

(Changed edition, Amendment No. 1)

2.2. A characteristic of non-constant noise in workplaces is the integral criterion - equivalent (in energy) sound level in dB A, determined in accordance with reference Appendix 2.

Additionally, for time-varying and intermittent noise, maximum sound levels are limited in dB· A, measured on the “slow” time characteristic, and for impulse noise - the maximum sound level in dB AI, measured on the time characteristic “impulse”.

It is allowed to use noise dose or relative noise dose as a characteristic of non-constant noise in accordance with reference Appendix 2.

2.3. Permissible sound pressure levels in octave frequency bands, sound levels and equivalent sound levels in workplaces should be accepted:

for broadband constant and non-constant (except impulse) noise - according to the table;

for tonal and impulse noise - by 5 dB less values indicated in the table;

View labor activity, workplaces	Sound pressure levels, dB, in composite bands with geometric mean frequencies, Hz									Sound levels and equivalent sound levels, dBA
	31,5	63	125	250	500	1000	2000	4000	8000
Enterprises, institutions and organizations
1 Creative activity, management work with increased demands, scientific activity, design and engineering, programming, teaching and learning, medical practice:
workplaces in the premises - directorate, design bureaus; calculators, computer programmers, in laboratories for theoretical work and data processing, receiving patients at health centers	86	71	61	54	49	45	42	40	38	50
2 Highly skilled work requiring concentration, administrative and management activities, measurement and analytical work in the laboratory:
workplaces in the premises of the shop management apparatus, in the workrooms of office premises, laboratories	93	79	70	63	58	55	52	50	49	60
3 Work performed with frequently received instructions and acoustic signals, work requiring constant auditory control, operator work on a precise schedule with instructions, dispatch work:
workplaces in dispatch service premises, offices and observation and remote control rooms with voice communication by telephone, typing bureaus, in precision assembly areas, in telephone and telegraph stations, in the premises of foremen, in information processing rooms on computers	96	83	74	68	63	60	57	55	54	65
4 Work that requires concentration, work with increased requirements for monitoring processes and remote control of production cycles:
workstations at consoles in observation and remote control booths without voice communication by telephone; in laboratories with noisy equipment, in rooms for placing noisy computer units	103	91	83	77	73	70	68	66	64	75
5 Performing all types of work (except for those listed in paragraphs 1-4 and similar) at permanent workplaces in production premises and on the territory of enterprises	107	95	87	82	78	75	73	71	69	80
Rolling stock railway transport
6 Workplaces in the driver’s cabins of diesel locomotives, electric locomotives, metro trains, diesel trains and railcars	99	95	87	82	78	75	73	71	69	80
7 Workplaces in the driver’s cabins of high-speed and suburban electric trains	99	91	83	77	73	70	68	66	64	75
8 Premises for personnel of long-distance train cars, service departments of refrigerated sections, power station cars, rest rooms in baggage and post offices	93	79	70	63	58	55	52	50	49	60
9 Service rooms of baggage and mail cars, dining cars	96	87	79	72	68	65	63	61	59	70
Sea, river, fishing and other vessels
10 Work area in the premises of the power department of sea vessels with a permanent watch (rooms in which the main power plant, boilers, engines and mechanisms that generate energy and ensure the operation of various systems and devices are installed)	107	95	87	82	78	75	73	71	69	80
11 Working areas in the central control posts (CCP) of sea vessels (soundproof), rooms separated from the power department, in which control devices, indicating devices, controls for the main power plant and auxiliary mechanisms are installed	96	83	74	68	63	60	57	55	54	65
12 Working areas in the service rooms of sea vessels (helms, navigation, baggermaster's rooms, radio rooms, etc.)	89	75	66	59	54	50	47	45	44	55
13 Production and technological premises on fishing industry vessels (premises for processing fish, seafood, etc.)	107	95	87	82	78	75	73	71	69	80
Tractors, self-propelled chassis, self-propelled, trailed and mounted agricultural machines, road construction, earth-moving, land reclamation and other similar types of machines
14 Workplaces for drivers and vehicle maintenance personnel	100	87	79	72	68	65	63	61	59	70
15 Workplaces for drivers and maintenance personnel (passengers) of passenger cars	93	79	70	63	58	55	52	50	49	60
16 Workplaces for drivers and maintenance personnel of self-propelled chassis tractors, trailed and mounted agricultural machines, road construction and other similar machines	107	95	87	82	78	75	73	71	69	80
17 Workplaces in cockpits and interiors of airplanes and helicopters	107	95	87	82	78	75	73	71	69	80

Notes:

1 It is allowed in industry documentation to establish more stringent standards for individual species labor activity taking into account labor intensity in accordance with Appendix 3.

2 It is prohibited to stay even for a short time in areas with octave sound pressure levels above 135 dB in any octave band.

for noise generated in premises by air conditioning, ventilation and air heating installations - 5 dB less than the actual noise levels in these premises (measured or determined by calculation), if the latter do not exceed the values specified in the table (correction for tonal and impulse noise in this case should not be accepted), in other cases - 5 dB less than the values indicated in the table.

(Changed edition, Amendment No. 1).

2.4. In addition to the requirements of clause 2.3, the maximum sound level of intermittent noise in workplaces according to clauses. 6 and 13 tables should not exceed 110 dB A when measuring on the “slow” time characteristic, and the maximum sound level of impulse noise at workplaces according to clause 6 of the table should not exceed 125 dB AI when measuring on the “pulse” time characteristic.

NOISE PROTECTION

3.1. During development technological processes, design, manufacture and operation of machines, industrial buildings and structures, as well as when organizing the workplace, all necessary measures should be taken to reduce noise affecting people in the workplace to values not exceeding the permissible values specified in Section. 2:

development of noise-proof equipment;

use of means and methods of collective protection in accordance with GOST 12.1.029;

use of personal protective equipment in accordance with GOST 12.4.051.

Note. Construction and acoustic measures provided for in the design of enterprises, buildings and structures for various purposes are in accordance with regulatory and technical documents approved or agreed upon with the USSR State Construction Committee.

3.2. Areas with sound levels or equivalent sound levels above 80 dB A must be marked with safety signs in accordance with GOST 12.4.026. The administration is obliged to provide workers in these zones with personal protective equipment in accordance with GOST 12.4.051.

(Changed edition, Amendment No. 1).

3.3. Enterprises, organizations and institutions must monitor noise levels in the workplace at least once a year.

REQUIREMENTS FOR THE NOISE CHARACTERISTICS OF MACHINES

4.1. In standards and (or) technical conditions Limit values for the noise characteristics of these machines must be established on machines.

4.2. The noise characteristic should be selected from those provided by GOST 23941.

4.3. The values of the maximum permissible noise characteristics of machines should be set based on the requirements for ensuring permissible noise levels at workplaces in accordance with the main purpose of the machine and the requirements of Section. 2 of this standard. Methods for establishing the maximum permissible noise characteristics of stationary machines - according to GOST 12.1.023.

4.4. If the values of the noise characteristics of machines that correspond to the best world achievements of similar equipment exceed the values established in accordance with the requirements of clause 4.3 of this standard, then in the standards and (or) technical specifications for machines it is allowed to establish technically achievable values of the noise characteristics of these, agreed upon in the established manner cars

Technically achievable values of noise characteristics of machines must be justified:

the results of measuring the noise characteristics of a representative number of cars using one of the methods in accordance with GOST 23941;

noise characteristics data best models similar machines produced abroad;

analysis of noise reduction methods and means used in the machine;

the presence of developed means of noise protection up to the levels established in clause 2.3, and their inclusion in the regulatory and technical documentation for the machine;

an action plan to reduce noise to a level that meets the requirements of clause 4.3 of this standard.

4.5. The noise characteristics of machines or the limit values of noise characteristics must be indicated in their passport, operating manual (instructions) or other accompanying documentation.

NOISE MEASUREMENT

5.1. Measurement of noise in workplaces: enterprises and institutions - according to GOST 12.1.050 and GOST 23941; agricultural self-propelled machines - according to GOST 12.4.095; tractors and self-propelled chassis - according to GOST 12.2.002; cars, road trains, buses, motorcycles, scooters, mopeds, motorbikes - according to GOST 27435 and GOST 27436; transport aircraft and helicopters - according to GOST 20296; rolling stock of railway transport - according to sanitary standards to limit noise on railway rolling stock, approved by the USSR Ministry of Health; for sea river and lake vessels - in accordance with GOST 12.1.020, sanitary noise standards in the premises of river fleet vessels and sanitary noise standards on sea vessels, approved by the USSR Ministry of Health.

(Changed edition, Amendment No. 1).

5.2. The measurement methodology for certain noise characteristics of machines is in accordance with GOST 23941, GOST 12.1.024, GOST 12.1.025, GOST 12.1.026, GOST 12.1.027, GOST 12.1.028.

ANNEX 1

Information

INFORMATION DATA ABOUT COMPLIANCE WITH GOST 12.1.003-83

ST SEV 1930-79

Requirements	GOST 12.1.003-83	ST SEV 1930-79
Establishment of sound pressure levels, sound levels and equivalent sound levels	Establishes sound pressure levels and equivalent sound levels at workplaces of manufacturing enterprises, depending on the severity and intensity of work in the frequency range 31.5-8000 Hz.	Sets sound pressure levels, sound levels at workplaces of manufacturing enterprises in the frequency range 63-8000 Hz.
	Sound levels and equivalent sound levels at workplaces in industrial premises - 80 dB A.	Sound levels and equivalent sound levels at workplaces in industrial premises - 85 dB A.
Noise measurement in workplaces	At workplaces in production premises according to GOST 12.1.050	At workplaces in production premises according to ST SEV 541

(Changed edition, Amendment No. 1).

APPENDIX 2

Information

INTEGRAL CRITERIA FOR NOISE STANDARDING

Equivalent (energy) sound level in dB A of a given intermittent noise - the sound level of a continuous broadband noise that has the same root mean square sound pressure as a given intermittent noise over a specified time interval and which is determined by the formula

Noise dose D in Pa 2 ×h - an integral value that takes into account the acoustic energy affecting a person over a certain period of time, and is determined by the formula

The relative noise dose as a percentage is determined by the formula

where is the permissible noise dose, Pa 2 × h.

The permissible noise dose is determined by the formula

Where - sound pressure value corresponding to the permissible sound level in accordance with clause 2.3 of this standard. Pa;

Length of working day (work shift), hours.

At = 0.356 Pa (corresponds to permissible sound level 85 dB A) and = 8 h

Relationship between equivalent sound level and relative noise dose (at permissible sound level of 80 dB A) depending on the duration of the noise is given in the table.

Relative	Equivalent sound level, dB A
noise dose, %	during the noise period
	8 hours	4 hours	2 hours	1 hour	30 min	15 minutes	7 min
3,2	70	73	76	79	82	85	88
6,3	73	76	79	82	85	88	91
12,5	76	79	82	85	88	91	94
25	79	82	85	88	91	94	97
50	82	85	88	91	94	97	100
100	85	88	91	94	97	100	103
200	88	91	94	97	100	103	106
400	91	94	97	100	103	106	109
800	94	97	100	103	106	109	112
1600	97	100	103	106	109	112	115
3200	100	103	106	109	112	115	118

(Changed edition, Amendment No. 1).

APPENDIX 3

Information

NOISE LEVELS FOR VARIOUS TYPES OF WORK ACTIVITIES, TAKEN IN ACCOUNT TO THE DEGREE OF WORK STRESS

Type of work activity	Sound levels and equivalent sound levels, dB A
Work on developing concepts and new programs; creation; teaching	40
The work of senior production managers associated with the control of a group of people performing primarily mental work	50
Highly skilled mental work requiring concentration; work associated exclusively with conversations via communication means	55
Mental work performed with frequently received instructions and acoustic signals; work requiring constant* auditory monitoring; high-precision category of visual work**	60
Mental work, according to an exact schedule with instructions (camera work), exact category of visual work	65
Physical work involving precision, concentration, or occasional auditory monitoring	80

* More than 50% of working time.

**According to the standards of natural and artificial lighting approved by the USSR State Construction Committee

STATE STANDARD OF THE USSR UNION

SYSTEM OF OCCUPATIONAL SAFETY STANDARDS

GENERAL SAFETY REQUIREMENTS

GOST 12.1.003-83
(ST SEV 1930-79)

DEVELOPED by the All-Union Central Council of Trade Unions USSR State Committee for Construction Affairs Ministry of Railways Academy of Medical Sciences of the USSR Ministry of Ferrous Metallurgy of the USSR Ministry of Agriculture of the USSR Ministry of Health of the Ukrainian SSR Ministry of Health of the RSFSR USSR State Committee for Standards Academy of Sciences of the USSR EXECUTORS B.A. Noblemen; Yu.M. Vasiliev, Ph.D. tech. sciences; L.F. Lagunov, Ph.D. tech. Sciences: L.N. Pyatachkova, Ph.D. tech. sciences; IN AND. Kopylov; G.L. Osipov, Doctor of Engineering. sciences; M.A. Porozhenko; E.Ya. Yudin, Doctor of Engineering. sciences; K.F. Kalmakhelidze, Ph.D. tech. sciences; Yu.P. Chepulsky, Ph.D. tech. sciences; G.A. Suvorov, Dr. med. sciences; L.N. Shkarinov, Dr. med. sciences; E.I. Denisov, Ph.D. tech. sciences; L.N. Klyachko, Ph.D. tech. sciences; D.B. Chekhomova, Ph.D. tech. sciences; A.I. Ponomarev, Ph.D. tech. sciences; V.E. Skibinsky; V.Z. Kleimenov, Ph.D. tech. sciences; V.V. Myasnikov; G.P. Saversky; T.A. Kochinashvili, Ph.D. tech. sciences; A.M. Nikolaishvili; N.I. Borodin, Ph.D. tech. sciences; V.F. Drobyshevskaya; G.I. Varnashov; A.A. Menshov, Dr. med. sciences; V.N. Soga; Yu.P. Paltsev, Ph.D. honey. sciences; A.V. Kolesnikova, Ph.D. honey, sciences; Sh.L. Zlotnik, Ph.D. tech. sciences; L.A. Potanin; N.P. Benevolenskaya, Dr. med. sciences; V.A. Shcherbakov; Yu.N. Kamensky, Ph.D. honey. sciences; A.I. Tsysar, Ph.D. honey. Sci. INTRODUCED by the All-Union Central Council of Trade Unions Deputy. head Department of Labor Protection A.P. Kupchin APPROVED AND ENTERED INTO EFFECT by Resolution of the USSR State Committee on Standards dated June 6, 1983 No. 2473

STATE STANDARD OF THE USSR UNION

Occupational Safety Standards System

General safety requirements

Occupational safety standards system
Noise. General safety requirements

GOST
12.1.003-83

(ST SEV 1930-79)

In return
GOST 12.1.003-76

By Decree of the USSR State Committee on Standards dated June 6, 1983 No. 2473, the validity period was established

from 01.07 84

The standard establishes noise classification, characteristics and permissible noise levels in workplaces, general requirements for noise protection in workplaces, noise characteristics of machines, mechanisms, vehicles and other equipment (hereinafter referred to as machines) and noise measurements.

1. CLASSIFICATION

1.1. Based on the nature of the spectrum, noise should be divided into: broadband with a continuous spectrum more than one octave wide; tonal, in the spectrum of which there are pronounced discrete tones. The tonal nature of noise for practical purposes (when monitoring its parameters at workplaces) is determined by measuring in one-third octave frequency bands by the excess of the sound pressure level in one band over neighboring ones by at least 10 dB. 1.2. According to time characteristics, noise should be divided into: constant, the sound level of which during an 8-hour working day (work shift) changes over time by no more than 5 dBA when measured on the time characteristic of a “slow” sound level meter according to GOST 17187-81; non-constant, the sound level of which during an 8-hour working day (work shift) changes over time by more than 5 dBA when measured on the time characteristic of a “slow” sound level meter according to GOST 17187-81. 1.3. Non-constant noise should be divided into: time-fluctuating noise, the sound level of which continuously changes over time; intermittent, the sound level of which changes stepwise (by 5 dBA or more), and the duration of the intervals during which the level remains constant is 1 s or more; pulse, consisting of one or more sound signals, each lasting less than 1 s, while the sound levels measured in dB AI and dBA, respectively, on the “pulse” and “slow” time characteristics of the sound level meter according to GOST 17187-81, differ by no less than 7 dB.

2. CHARACTERISTICS AND PERMISSIBLE NOISE LEVELS AT WORKPLACES

Where p is the root mean square value of sound pressure, Pa; p 0 - initial sound pressure value. In air p 0 = 2 ´ 10 -5 Pa. Note. For an approximate assessment (for example, when checking by supervisory authorities, identifying the need for noise attenuation measures, etc.), it is allowed to take the sound level in dBA, measured on the time characteristic of the “slow” sound meter according to GOST 17187-81, as a characteristic of constant broadband noise in workplaces. and determined by the formula

Where r A- root mean square value of sound pressure taking into account the “A” correction of the sound level meter, Pa. (Changed edition, Amendment No. 1). 2.2. A characteristic of non-constant noise in workplaces is the integral criterion - the equivalent (energy) sound level in dBA, determined in accordance with reference Appendix 2. Additionally, for time-varying and intermittent noise, the maximum sound levels in dBA are limited, measured on the “slow” time characteristic. , and for impulse noise - the maximum sound level in dBA I, measured on the “impulse” time characteristic. It is allowed to use noise dose or relative noise dose as a characteristic of non-constant noise in accordance with reference Appendix 2. 2.3. Permissible sound pressure levels in octave frequency bands, sound levels and equivalent sound levels at workplaces should be taken: for broadband constant and non-constant (except for impulse) noise - according to the table;

Type of work activity, jobs	Sound pressure levels, dB, in octave bands with geometric mean frequencies in Hz
Type of work activity, jobs
Enterprises, institutions and organizations
1. Creative activity, leadership work with increased requirements, scientific activity, design and engineering, programming, teaching and learning, medical activity: workplaces in the premises of the directorate, design bureaus; calculators, computer programmers, in laboratories for theoretical work and data processing, receiving patients at health centers
2. Highly skilled work that requires concentration, administrative and management activities, measurement and analytical work in the laboratory:
workplaces in the premises of the shop management apparatus, in the workrooms of office premises, laboratories
3. Work performed with frequently received instructions and acoustic signals, work requiring constant auditory control, operator work on a precise schedule with instructions, dispatch work:
workplaces in dispatch service premises, offices and observation and remote control rooms with voice communication by telephone, typing bureaus, in precision assembly areas, in telephone and telegraph stations, in the premises of foremen, in information processing rooms on computers
4. Work that requires concentration, work with increased requirements for monitoring processes and remote control of production cycles:
workstations at consoles in observation and remote control booths without voice communication by telephone; in laboratories with noisy equipment, in rooms for placing noisy computer units
5. Performing all types of work (except for those listed in paragraphs 1-4 and similar) at permanent workplaces in production premises and on the territory of enterprises
Railway rolling stock
6. Workplaces in the driver’s cabins of diesel locomotives, electric locomotives, metro trains, diesel trains and motor vehicles
7. Workplaces in the driver’s cabins of high-speed and suburban electric trains
8. Premises for personnel of long-distance train cars, service departments of refrigerated sections, power station cars, rest rooms in baggage and post offices
9. Service rooms of baggage and mail cars, dining cars
Sea, river, fishing and other vessels
10. Work area in the premises of the power department of sea vessels with a permanent watch (rooms in which the main power plant, boilers, engines and mechanisms that generate energy and ensure the operation of various systems and devices are installed)
11. Working areas in the central control posts (CCP) of sea vessels (soundproof), rooms separated from the power department, in which control devices, indicating devices, controls for the main power plant and auxiliary mechanisms are installed
12. Work areas in the service rooms of sea vessels (helms, navigation, baggermaster's rooms, radio rooms, etc.)
13. Production and technological premises on fishing industry vessels (premises for processing fish, seafood, etc.)
Tractors, self-propelled chassis, self-propelled, trailed and mounted agricultural machines, road construction, earth moving, reclamation and other similar types of machines
14. Workplaces for drivers and vehicle maintenance personnel
15. Workplaces for drivers and maintenance personnel (passengers) of passenger cars
16. Workplaces for drivers and maintenance personnel of self-propelled chassis tractors, trailed and mounted agricultural machines, road construction and other similar machines
17. Workplaces in cockpits and interiors of airplanes and helicopters
Notes: 1. It is allowed in industry documentation to establish more stringent standards for certain types of work activity, taking into account labor intensity in accordance with reference Appendix 3. 2. Even short-term stay in areas with octave sound pressure levels above 135 dB in any octave band is prohibited.

(New edition, Amendment No. 1). for tonal and impulse noise - 5 dB less than the values indicated in the table; for noise generated in premises by air conditioning, ventilation and air heating installations - 5 dB less than the actual noise levels in these premises (measured or determined by calculation), if the latter do not exceed the values specified in the table (correction for tonal and impulse noise in this case should not be accepted), in other cases - 5 dB less than the values indicated in the table. (Changed edition, Amendment No. 1). 2.4. In addition to the requirements of clause 2.3, the maximum sound level of intermittent noise in workplaces according to clauses. 6 and 13 of the table should not exceed 110 dBA when measured on the “slow” time characteristic, and the maximum sound level of impulse noise at workplaces according to clause 6 of the table should not exceed 125 dBA I when measured on the “impulse” time characteristic.

3. PROTECTION AGAINST NOISE

3.1. When developing technological processes, designing, manufacturing and operating machines, industrial buildings and structures, as well as when organizing a workplace, all necessary measures should be taken to reduce the noise affecting people in the workplace to values not exceeding the permissible values specified in Section. 2: development of noise-proof equipment; use of means and methods of collective protection in accordance with GOST 12.1.029-80; use of personal protective equipment in accordance with GOST 12.4.051-87. Note. Construction and acoustic measures provided for in the design of enterprises, buildings and structures for various purposes are in accordance with regulatory and technical documents approved or agreed upon with the USSR State Construction Committee. (Changed edition, Amendment No. 1). 3.2. Areas with a sound level or equivalent sound level above 80 dBA must be marked with safety signs in accordance with GOST 12.4.026-76. The administration is obliged to provide those working in these zones with personal protective equipment in accordance with GOST 12.4.051-87. (Changed edition, Amendment No. 1). 3.3. Enterprises, organizations and institutions must monitor noise levels in the workplace at least once a year.

4. REQUIREMENTS FOR THE NOISE CHARACTERISTICS OF MACHINES

4.1. The standards and (or) technical specifications for machines must establish limit values for the noise characteristics of these machines. 4.2. The noise characteristic should be selected from those provided by GOST 23941-79. 4.3. The values of the maximum permissible noise characteristics of machines should be set based on the requirements for ensuring permissible noise levels at workplaces in accordance with the main purpose of the machine and the requirements of Section. 2 of this standard. Methods for establishing the maximum permissible noise characteristics of stationary machines - according to GOST 12.1.023-80. 4.4. If the values of the noise characteristics of machines that correspond to the best world achievements of similar equipment exceed the values established in accordance with the requirements of clause 4.3 of this standard, then in the standards and (or) technical specifications for machines it is allowed to establish technically achievable values of the noise characteristics of these, agreed upon in the established manner cars Technically achievable values of the noise characteristics of machines must be justified by: the results of measuring the noise characteristics of a representative number of machines using one of the methods in accordance with GOST 23941-79; data on the noise characteristics of the best models of similar machines produced abroad; analysis of noise reduction methods and means used in the machine; the presence of developed means of noise protection up to the levels established in clause 2.3, and their inclusion in the regulatory and technical documentation for the machine; an action plan to reduce noise to a level that meets the requirements of clause 4.3 of this standard. 4.5. The noise characteristics of machines or the limit values of noise characteristics must be indicated in their passport, operating manual (instructions) or other accompanying documentation.

5. NOISE MEASUREMENT

5.1. Measurement of noise in workplaces: enterprises and institutions - according to GOST 12.1.050-86 and GOST 23941-79; agricultural self-propelled machines - according to GOST 12.4.095-80; tractors and self-propelled chassis - according to GOST 12.2.002 -81; cars, road trains, buses, motorcycles, scooters, mopeds, motorbikes - according to GOST 27435-87 and GOST 27436-87; transport aircraft and helicopters - according to GOST 20296-81; rolling stock of railway transport - according to sanitary standards for limiting noise on rolling stock of railway transport, approved by the Ministry of Health of the USSR; for sea river and lake vessels - in accordance with GOST 12.1.020-79, sanitary noise standards in the premises of river fleet vessels and sanitary noise standards on sea vessels, approved by the USSR Ministry of Health. (Changed edition, Amendment No. 1). 5.2. The measurement methodology for certain noise characteristics of machines is in accordance with GOST 23941-79, GOST 12.1.024-81, GOST 12.1.025-81, GOST 12.1.026-80, GOST 1.2.1.027-80, GOST 12.1.028-80.

ANNEX 1

Information

INFORMATION DATA ABOUT COMPLIANCE WITH GOST 12.1.003-83 ST SEV 1930-79

Requirements	GOST 12.1.003-83	ST SEV 1930-79
Establishment of sound pressure levels, sound levels and equivalent levels	Establishes sound pressure levels and equivalent sound levels at workplaces of manufacturing enterprises, depending on the severity and intensity of work in the frequency range 31.5 - 8000 Hz.	Sets sound pressure levels, sound levels at workplaces of manufacturing enterprises in the frequency range 63 - 8000 Hz.
	Sound levels and equivalent sound levels at workplaces in industrial premises - 80 dBA.	Sound levels and equivalent sound levels at workplaces in industrial premises - 85 dBA.
Noise measurement in workplaces	At workplaces in production premises in accordance with GOST 12.1.050-86.	At workplaces in production premises according to ST SEV 541-77.

(New edition, Amendment No. 1).

APPENDIX 2

Information

INTEGRAL CRITERIA FOR NOISE STANDARDING

1. Equivalent (in energy) sound level L A eq in dBA of a given intermittent noise - the sound level of constant broadband noise, which has the same root mean square sound pressure as the given intermittent noise over a certain time interval and which is determined by the formula

Where p A ( t) - current value of the mean square sound pressure taking into account the correction “A” of the sound level meter, Pa; p 0 - initial value of sound pressure (in air p 0 = 2 ´ 10 -5 Pa); T - duration of noise, h. 2. Noise dose D in Pa 2 × h - an integral value that takes into account the acoustic energy affecting a person over a certain period of time, and is determined by the formula

The relative noise dose Drel as a percentage is determined by the formula

Where D permissible noise dose, Pa 2 × h. Permissible noise dose D permissible is determined by the formula

Where p A additional - sound pressure value corresponding to the permissible sound level in accordance with clause 2.3 of this standard. Pa; T w.d - duration of the working day (work shift), hours. When p A additional = 0.356 Pa (corresponds to the permissible sound level of 80 dBA) and T r.d = 8 h

D add = 1 Pa 2 × h;

When D = D add D rel = 100%. The relationship between the equivalent sound level and the relative noise dose (at an acceptable sound level of 80 dBA) depending on the duration of the noise is given in the table. (Changed edition, Amendment No. 1).

Relative noise dose, %

Equivalent sound level, dBA during noise exposure

APPENDIX 3

Information

NOISE LEVELS FOR VARIOUS TYPES OF WORK ACTIVITIES, TAKEN IN ACCOUNT TO THE DEGREE OF WORK STRESS

Type of work activity	Sound levels and equivalent sound levels, dBA
Work on developing concepts and new programs; creation; teaching
The work of senior production managers associated with the control of a group of people performing primarily mental work
Highly skilled mental work requiring concentration; work associated exclusively with conversations via communication means
Mental work performed with frequently received instructions and acoustic signals; work requiring constant* auditory monitoring; high-precision category of visual work**
Mental work, according to an exact schedule with instructions (camera work), exact category of visual work
Physical work involving precision, concentration, or occasional auditory monitoring
More than 50% of working time. *According to the standards of natural and artificial lighting approved by the USSR State Construction Committee

1. Classification. 2 2. Characteristics and permissible noise levels in workplaces. 2 3. Noise protection. 6 4. Requirements for noise characteristics of machines. 6 Appendix 1 Information data on compliance with GOST 12.1.003-83 St. SEV 1930-79. 7 Appendix 2 Integral criteria for noise regulation. 7 Appendix 3 Noise levels for various types work activity, taking into account the degree of labor intensity. 8

ST SEV 541-77

Annex 1

6 The validity period was lifted according to Protocol No. 3-93 of the Interstate Council for Standardization, Metrology and Certification (IUS 5-6-93)

7 EDITION (February 2002) with Amendment No. 1, approved in December 1988 (IUS 3-89)

1 Classification

1 CLASSIFICATION

1.1 Based on the nature of the spectrum, noise should be divided into:

broadband with a continuous spectrum more than one octave wide;

1.2 Based on time characteristics, noise should be divided into:

constant, the sound level of which over an 8-hour working day (work shift) changes over time by no more than 5 dB A when measured on the time characteristic of a “slow” sound level meter according to GOST 17187;

non-constant, the sound level of which during an 8-hour working day (work shift) changes over time by more than 5 dB A when measured on the time characteristic of a “slow” sound level meter according to GOST 17187.

1.3 Intermittent noise should be divided into:

time-fluctuating, the sound level of which continuously changes over time;

intermittent, the sound level of which changes stepwise (by 5 dB A or more), and the duration of the intervals during which the level remains constant is 1 s or more;

pulse, consisting of one or more sound signals, each lasting less than 1 s, while the sound levels measured in dB AI and dB A, respectively, on the “pulse” and “slow” time characteristics of the sound level meter according to GOST 17187, differ by at least 7 dB.

2 Characteristics and permissible noise levels in workplaces

2.1 Characteristics of constant noise in workplaces are sound pressure levels in dB in octave bands with geometric mean frequencies 31.5, 63, 125, 250, 500, 1000, 2000, 4000, 8000 Hz, determined by the formula

where is the root mean square value of sound pressure, Pa;

- initial sound pressure value. In air = 2x10 Pa.

Note - For an approximate assessment (for example, when checking by supervisory authorities, identifying the need for noise attenuation measures, etc.), it is allowed to take the sound level in dB A, measured on the time characteristic of a “slow” sound level meter according to GOST, as a characteristic of constant broadband noise in workplaces 17187 and determined by the formula

where is the root mean square value of sound pressure taking into account the “A” correction of the sound level meter, Pa.

(Changed edition, Amendment No. 1).

2.2 A characteristic of non-constant noise in workplaces is the integral criterion - the equivalent (energy) sound level in dB A, determined in accordance with Appendix 2.

Additionally, for time-varying and intermittent noise, the maximum sound levels in dB A, measured on the “slow” time characteristic, are limited, and for impulsive noise, the maximum sound level in dB AI, measured on the “impulse” time characteristic.

It is allowed to use noise dose or relative noise dose as a characteristic of non-constant noise in accordance with Appendix 2.

2.3 Permissible sound pressure levels in octave frequency bands, sound levels and equivalent sound levels at workplaces should be accepted:

for broadband constant and non-constant (except impulse) noise - according to the table;

for tonal and impulse noise - 5 dB less than the values indicated in the table;

Type of work activity
workplaces

Sound pressure levels, dB,
in octave bands with geometric mean frequencies, Hz

Sound levels
and equivalent
levels
sound,
dB A

Enterprises, institutions and organizations

1 Creative activity, leadership work with increased requirements, scientific activity, design and engineering, programming, teaching and learning, medical activity:

workplaces in the premises - directorate, design bureaus; calculators, computer programmers, in laboratories for theoretical work and data processing, receiving patients at health centers

2 Highly skilled work requiring concentration, administrative and management activities, measurement and analytical work in the laboratory:

workplaces in the premises of the shop management apparatus, in the workrooms of office premises, laboratories

3 Work performed with frequently received instructions and acoustic signals, work requiring constant auditory control, operator work on a precise schedule with instructions, dispatch work:

workplaces in dispatch service premises, offices and observation and remote control rooms with voice communication by telephone, typing offices, precision assembly areas, telephone and telegraph stations, in
workshops, in information processing rooms on computers

4 Work that requires concentration, work with increased requirements for monitoring processes and remote control of production cycles:

workstations at consoles in observation and remote control booths without voice communication by telephone; in laboratories with noisy equipment, in rooms for placing noisy computer units

5 Performing all types of work (except for those listed in paragraphs 1-4 and similar) at permanent workplaces in production premises and on the territory of enterprises

Railway rolling stock

6 Workplaces in the driver’s cabins of diesel locomotives, electric locomotives, metro trains, diesel trains and railcars

7 Workplaces in the driver’s cabins of high-speed and suburban electric trains

8 Premises for personnel of long-distance train cars, service departments of refrigerated sections, power station cars, rest rooms in baggage and post offices

9 Service rooms of baggage and mail cars, dining cars

Sea, river, fishing and other vessels

10 Work area in the premises of the power department of sea vessels with a permanent watch (rooms in which the main power plant, boilers, engines and mechanisms that generate energy and ensure the operation of various systems and devices are installed)

11 Working areas in the central control posts (CCP) of sea vessels (soundproof), rooms separated from the power department, in which control devices, indicating devices, controls for the main power plant and auxiliary mechanisms are installed

12 Working areas in the service rooms of sea vessels (helms, navigation, baggermeister rooms,
radio rooms, etc.)

13 Production and technological premises on fishing industry vessels (premises for processing fish, seafood, etc.)

Tractors, self-propelled chassis, self-propelled, trailed and mounted agricultural machines, road construction, earth-moving, land reclamation and other similar types of machines

14 Workplaces for drivers and vehicle maintenance personnel

15 Workplaces for drivers and maintenance personnel (passengers) of passenger cars

16 Workplaces for drivers and maintenance personnel of tractors, self-propelled chassis, trailed and mounted agricultural machines, road construction and others
similar machines

17 Workplaces in cockpits and interiors of airplanes and helicopters

Notes: 1 It is allowed in industry documentation to establish more stringent standards for certain types of work activities, taking into account the intensity of labor in accordance with Appendix 3.

2 It is prohibited to stay even for a short time in areas with octave sound pressure levels above 135 dB in any octave band.

for noise generated in premises by air conditioning, ventilation and air heating installations - 5 dB less than the actual noise levels in these premises (measured or determined by calculation), if the latter do not exceed the values specified in the table (correction for tonal and impulse noise in this case should not be accepted), in other cases - 5 dB less than the values indicated in the table.

(Changed edition, Amendment No. 1).

2.4 In addition to requirements 2.3, the maximum sound level of non-constant noise at workplaces according to clause 6 and 13 of the table should not exceed 110 dB A when measured on the “slow” time characteristic, and the maximum sound level of impulse noise at workplaces according to clause 6 of the table should not exceed 125 dB AI when measured on the “impulse” time characteristic.

3 Noise protection

3.1 When developing technological processes, designing, manufacturing and operating machines, industrial buildings and structures, as well as when organizing a workplace, all necessary measures should be taken to reduce noise affecting people in the workplace to values not exceeding the permissible values specified in Section .2:

development of noise-proof equipment;

the use of means and methods of collective protection in accordance with GOST 12.1.029;

use of personal protective equipment in accordance with GOST 12.4.051 *.
____________________
GOST R 12.4.213-99 (hereinafter).

Note - Construction and acoustic measures provided for in the design of enterprises, buildings and structures for various purposes are in accordance with regulatory and technical documents approved or agreed upon with the USSR State Construction Committee.

3.2 Areas with a sound level or equivalent sound level above 80 dB A must be marked with safety signs in accordance with GOST 12.4.026 *. The administration is obliged to provide those working in these zones with personal protective equipment in accordance with GOST 12.4.051.
____________________
* IN Russian Federation GOST R 12.4.026-2001 is valid.

(Changed edition, Amendment No. 1).

3.3 At enterprises, organizations and institutions, noise levels in the workplace must be monitored at least once a year.

4 Requirements for noise characteristics of machines

4.1 The standards and (or) technical specifications for machines must establish limit values for the noise characteristics of these machines.

4.2 The noise characteristic should be selected from those provided by GOST 23941.

4.3 The values of the maximum permissible noise characteristics of machines should be set based on the requirements to ensure acceptable noise levels at workplaces in accordance with the main purpose of the machine and the requirements of Section 2 of this standard. Methods for establishing the maximum permissible noise characteristics of stationary machines - according to GOST 12.1.023.

4.4 If the values of the noise characteristics of machines that correspond to the best world achievements of similar technology increase* the values established in accordance with the requirements of 4.3 of this standard, then in the standards and (or) technical specifications for machines it is allowed to establish technically achievable values of the noise characteristics of these, agreed upon in the established manner cars
________________
* The text of the document corresponds to the original. - Database manufacturer's note.

Technically achievable values of noise characteristics of machines must be justified:

the results of measuring the noise characteristics of a representative number of cars using one of the methods in accordance with GOST 23941;

data on the noise characteristics of the best models of similar machines produced abroad;

analysis of noise reduction methods and means used in the machine;

the presence of developed means of noise protection up to the levels established by 2.3, and their inclusion in the regulatory and technical documentation for the machine;

an action plan to reduce noise to a level that meets the requirements of 4.3 of this standard.

4.5 The noise characteristics of machines or the limit values of noise characteristics must be indicated in their passport, operating manual (instructions) or other accompanying documentation.

5 Noise measurement

5.1 Measurement of noise in workplaces: enterprises and institutions - according to GOST 12.1.050 and GOST 23941; agricultural self-propelled machines - according to GOST 12.4.095; tractors and self-propelled chassis - according to GOST 12.2.002; cars, road trains, buses, motorcycles, scooters, mopeds, motorbikes - according to GOST 27435* and GOST 27436; transport aircraft and helicopters - according to GOST 20296; rolling stock of railway transport - according to sanitary standards for limiting noise on rolling stock of railway transport, approved by the Ministry of Health of the USSR; for sea, river and lake vessels - in accordance with GOST 12.1.020, sanitary noise standards in the premises of river fleet vessels and sanitary noise standards on sea vessels, approved by the USSR Ministry of Health.
__________________
* GOST R 51616-2000 is in force in the Russian Federation.

(Changed edition, Amendment No. 1).

5.2 Methodology for performing measurements for certain noise characteristics of machines - according to GOST 23941, GOST 12.1.024, GOST 12.1.025, GOST 12.1.026*, GOST 12.1.027 **, GOST 12.1.028 ***.
__________________
* GOST R 51401-99 is in force in the Russian Federation.

** In the Russian Federation, GOST R 51400-99 is in force.

*** In the Russian Federation, GOST R 51402-99 is in force.

Appendix 1 (for reference). Information data on compliance with GOST 12.1.003-83 ST SEV 1930-79

ANNEX 1
Information


Requirements	GOST 12.1.003-83	ST SEV 1930-79
Establishment of sound pressure levels, sound levels and equivalent levels	Establishes sound pressure levels and equivalent sound levels at workplaces of manufacturing enterprises, depending on the severity and intensity of work in the frequency range 31.5-8000 Hz.	Sets sound pressure levels, sound levels at workplaces of manufacturing enterprises in the frequency range 63-8000 Hz.
	Sound levels and equivalent sound levels at workplaces in industrial premises - 80 dB A.	Sound levels and equivalent sound levels at workplaces in industrial premises - 85 dB A.
Noise measurement in workplaces	GOST 12.1.050	At workplaces in production facilities ST SEV 541

(Changed edition, Amendment No. 1).

Appendix 2 (for reference). Integral noise standardization criteria

APPENDIX 2
Information

1 Equivalent (energy) sound level in dB of a given intermittent noise is the sound level of a continuous broadband noise that has the same root mean square sound pressure as the given intermittent noise over a specified time interval and is determined by the formula

where is the current value of the mean square sound pressure taking into account the correction “A” of the sound level meter, Pa;

- initial value of sound pressure (in air = 2·10 Pa);

Noise duration, hours

2 Noise dose D in Pah - an integral value that takes into account the acoustic energy affecting a person over a certain period of time, and is determined by the formula

The relative noise dose as a percentage is determined by the formula

where is the permissible noise dose, Pa h.

The permissible noise dose is determined by the formula

where is the sound pressure value corresponding to the permissible sound level in accordance with clause 2.3 of this standard, Pa;

Length of working day (work shift), hours.

At = 0.356 Pa (corresponds to permissible sound level 80 dB A) and = 8 h

The relationship between the equivalent sound level and the relative noise dose (at an acceptable sound level of 80 dB A) depending on the duration of the noise is given in the table.


	during the noise period

(Changed edition, Amendment No. 1).

Appendix 3 (for reference). Noise levels for various types of work activities, taking into account the degree of labor intensity

APPENDIX 3
Information


Type of work activity	Sound levels and equivalent sound levels, dB A
Work on developing concepts and new programs; creation; teaching
The work of senior production managers associated with the control of a group of people performing primarily mental work
Highly skilled mental work requiring concentration; work associated exclusively with conversations via communication means
Mental work performed with frequently received instructions and acoustic signals; work requiring constant* auditory monitoring; high-precision category of visual work**
Mental work, according to an exact schedule with instructions (camera work), exact category of visual work
Physical work involving precision, concentration, or occasional auditory monitoring

_______________
* More than 50% of working time.

**According to the standards of natural and artificial lighting approved by the USSR State Construction Committee.

Electronic document text
prepared by Kodeks JSC and verified against:
official publication
System of occupational safety standards.
Sat. GOST. - M.: IPK Publishing House of Standards, 2002

Unofficial edition

GOST 12.1.003-83

INTERSTATE STANDARD

Occupational Safety Standards System

General safety requirements

Date of introduction 01.07 84

INFORMATION DATA

1 DEVELOPED by the All-Union Central Council of Trade Unions, the USSR State Committee for Construction, the Ministry of Railways, the USSR Academy of Medical Sciences, the USSR Ministry of Ferrous Metallurgy, the USSR Ministry of Agriculture, the Ukrainian SSR Ministry of Health, the RSFSR Ministry of Health, the USSR State Committee for Standards, the USSR Academy of Sciences

DEVELOPERS

B.A. Noblemen; Yu.M. Vasiliev, Ph.D. tech. sciences; L.F. Lagunov, Ph.D. tech. Sciences: L.N. Pyatachkova, Ph.D. tech. sciences; IN AND. Kopylov; G.L. Osipov, Doctor of Engineering. sciences; M.A. Porozhenko; E.Ya. Yudin, Doctor of Engineering. sciences; K.F. Kalmakhelidze, Ph.D. tech. sciences; Yu.P. Chepulsky, Ph.D. tech. sciences; G.A. Suvorov, Dr. med. sciences; L.N. Shkarinov, Dr. med. sciences; E.I. Denisov, Ph.D. tech. sciences; L.N. Klyachko, Ph.D. tech. sciences; D.B. Chekhomova, Ph.D. tech. sciences; A.I. Ponomarev, Ph.D. tech. sciences; V.E. Skibinsky; V.Z. Kleimenov, Ph.D. tech. sciences; V.V. Myasnikov; G.P. Saversky; T.A. Kochinashvili, Ph.D. tech. sciences; A.M. Nikolaishvili; N.I. Borodin, Ph.D. tech. sciences; V.F. Drobyshevskaya; G.I. Varnashov; A.A. Menshov, Dr. med. sciences; V.N. Soga; Yu.P. Paltsev, Ph.D. honey. sciences; A.V. Kolesnikova, Ph.D. honey, sciences; Sh.L. Zlotnik, Ph.D. tech. sciences; L.A. Potanin; N.P. Benevolenskaya, Dr. med. sciences; V.A. Shcherbakov; Yu.N. Kamensky, Ph.D. honey. sciences; A.I. Tsysar, Ph.D. honey. Sci.

2 APPROVED AND ENTERED INTO EFFECT by Resolution of the USSR State Committee on Standards dated 06.06.83 No. 2473

3. The standard corresponds to ST SEV 1930-79 in terms of permissible values of sound pressure levels and sound levels at workplaces of manufacturing enterprises and their measurements.

4. INSTEAD GOST 12.1.003-76

5 REFERENCED REGULATIVE AND TECHNICAL DOCUMENTS

	Item number, application	Designation of the referenced technical document	Item number, application
GOST 12.1.020-79	5.1	GOST 12.4.026-76	3.2
GOST 12.1.023-80	4.3	GOST 12.4.051-87	3.1, 3.2
GOST 12.1.024-81	5.2	GOST 12.4.095-80	5.1
GOST 12.1.025-81	5.2	GOST 17187-81	1.2, 1.3, 2.1
GOST 12.1.026-80	5.2	GOST 20296-81	5.1
GOST 12.1.027-80	5.2	GOST 23941-79	4.2, 4.4, 5.1, 5.2
GOST 12.1.028-80	5.2	GOST 27435-87	5.1
GOST 12.1.029-80	3.1	GOST 27436-87	5.1
GOST 12.1.050-86	5.1, Appendix 1	ST SEV 541-77	Annex 1
GOST 12.2.002-91	5.1

6 The validity period was lifted according to Protocol No. 3-93 of the Interstate Council for Standardization, Metrology and Certification (IUS 5-6-93)

7 REISSUE (September 1999) with Change No. 1, approved in December 1988 (IUS 3-89)

1. CLASSIFICATION

1.1. Based on the nature of the spectrum, noise should be divided into:

broadband with a continuous spectrum more than one octave wide;

1.2. According to temporal characteristics, noise should be divided into:

1.3. Intermittent noise should be divided into:

time-fluctuating, the sound level of which continuously changes over time;

intermittent, the sound level of which changes stepwise (by 5 dB A or more), and the duration of the intervals during which the level remains constant is 1 s or more;

2. CHARACTERISTICS AND ALLOWABLE NOISE LEVELS

AT THE WORKPLACE

Where p- root mean square value of sound pressure, Pa;

p 0 - initial sound pressure value. In the air R 0 = 2 ´10 -5 Pa.

Where R A - root mean square value of sound pressure taking into account the correction “A” of the sound level meter, Pa.

(Changed edition, Amendment No. 1)

2.2. A characteristic of non-constant noise in workplaces is the integral criterion - equivalent (in energy) sound level in dB A, determined in accordance with reference Appendix 2.

Additionally, for time-varying and intermittent noise, maximum sound levels are limited in dB· A, measured on the “slow” time characteristic, and for impulse noise - the maximum sound level in dB AI, measured on the time characteristic “impulse”.

It is allowed to use noise dose or relative noise dose as a characteristic of non-constant noise in accordance with reference Appendix 2.

2.3. Permissible sound pressure levels in octave frequency bands, sound levels and equivalent sound levels in workplaces should be accepted:

for broadband constant and non-constant (except impulse) noise - according to the table;

for tonal and impulse noise - 5 dB less than the values indicated in the table;

Type of work activity, jobs	Sound pressure levels, dB, in composite bands with geometric mean frequencies, Hz									Sound levels and equivalent sound levels, dBA
	31,5	63	125	250	500	1000	2000	4000	8000
Enterprises, institutions and organizations
1 Creative activity, leadership work with increased requirements, scientific activity, design and engineering, programming, teaching and learning, medical activity:
workplaces in the premises - directorate, design bureaus; calculators, computer programmers, in laboratories for theoretical work and data processing, receiving patients at health centers	86	71	61	54	49	45	42	40	38	50
2 Highly skilled work requiring concentration, administrative and management activities, measurement and analytical work in the laboratory:
workplaces in the premises of the shop management apparatus, in the workrooms of office premises, laboratories	93	79	70	63	58	55	52	50	49	60
3 Work performed with frequently received instructions and acoustic signals, work requiring constant auditory control, operator work on a precise schedule with instructions, dispatch work:
workplaces in dispatch service premises, offices and observation and remote control rooms with voice communication by telephone, typing bureaus, in precision assembly areas, in telephone and telegraph stations, in the premises of foremen, in information processing rooms on computers	96	83	74	68	63	60	57	55	54	65
4 Work that requires concentration, work with increased requirements for monitoring processes and remote control of production cycles:
workstations at consoles in observation and remote control booths without voice communication by telephone; in laboratories with noisy equipment, in rooms for placing noisy computer units	103	91	83	77	73	70	68	66	64	75
5 Performing all types of work (except for those listed in paragraphs 1-4 and similar) at permanent work sites in production premises and on enterprise territory	107	95	87	82	78	75	73	71	69	80
Railway rolling stock
6 Workplaces in the driver’s cabins of diesel locomotives, electric locomotives, metro trains, diesel trains and railcars	99	95	87	82	78	75	73	71	69	80
7 Workplaces in the driver’s cabins of high-speed and suburban electric trains	99	91	83	77	73	70	68	66	64	75
8 Premises for personnel of long-distance train cars, service departments of refrigerated sections, power station cars, rest rooms in baggage and post offices	93	79	70	63	58	55	52	50	49	60
9 Service rooms of baggage and mail cars, dining cars	96	87	79	72	68	65	63	61	59	70
Sea, river, fishing and other vessels
10 Work area in the premises of the power department of sea vessels with a permanent watch (rooms in which the main power plant, boilers, engines and mechanisms that generate energy and ensure the operation of various systems and devices are installed)	107	95	87	82	78	75	73	71	69	80
11 Working areas in the central control posts (CCP) of sea vessels (soundproof), rooms separated from the power department, in which control devices, indicating devices, controls for the main power plant and auxiliary mechanisms are installed	96	83	74	68	63	60	57	55	54	65
12 Working areas in the service rooms of sea vessels (helms, navigation, baggermaster's rooms, radio rooms, etc.)	89	75	66	59	54	50	47	45	44	55
13 Production and technological premises on fishing industry vessels (premises for processing fish, seafood, etc.)	107	95	87	82	78	75	73	71	69	80
Tractors, self-propelled chassis, self-propelled, trailed and mounted agricultural machines, road construction, earth-moving, land reclamation and other similar types of machines
14 Workplaces for drivers and vehicle maintenance personnel	100	87	79	72	68	65	63	61	59	70
15 Workplaces for drivers and maintenance personnel (passengers) of passenger cars	93	79	70	63	58	55	52	50	49	60
16 Workplaces for drivers and maintenance personnel of self-propelled chassis tractors, trailed and mounted agricultural machines, road construction and other similar machines	107	95	87	82	78	75	73	71	69	80
17 Workplaces in cockpits and interiors of airplanes and helicopters	107	95	87	82	78	75	73	71	69	80

Notes:

1 It is allowed in industry documentation to establish more stringent standards for certain types of work activity, taking into account labor intensity in accordance with Appendix 3.

2 It is prohibited to stay even for a short time in areas with octave sound pressure levels above 135 dB in any octave band.

(Changed edition, Amendment No. 1).

3. PROTECTION AGAINST NOISE

development of noise-proof equipment;

use of means and methods of collective protection in accordance with GOST 12.1.029;

use of personal protective equipment in accordance with GOST 12.4.051.

(Changed edition, Amendment No. 1).

3.3. Enterprises, organizations and institutions must monitor noise levels in the workplace at least once a year.

4. REQUIREMENTS FOR THE NOISE CHARACTERISTICS OF MACHINES

4.1. The standards and (or) technical specifications for machines must establish limit values for the noise characteristics of these machines.