Scope
ISO 9612:2009
Occupational Noise Exposure Measurement
This standard specifies methods for measuring and assessing noise exposure of workers in occupational environments to determine compliance with exposure limits and identify hearing protection needs. The measurement protocols account for temporal variations in noise and worker movement to characterize daily noise exposure levels. Results are critical for occupational health and safety compliance, hearing loss prevention programs, and workplace risk assessment. Accredited laboratories ensure measurement uncertainty, calibration standards, and data interpretation meet regulatory requirements for legal and health-safety defensibility.
What it measures
- Equivalent continuous A-weighted sound pressure level (Leq,8h)
- Peak sound pressure levels and impulsive noise
- Daily noise exposure level (LEX,8h)
- Frequency-weighted noise exposure
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DIN EN ISO 4871
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BS EN ISO 4871
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NF EN ISO 4871
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UNI EN ISO 4871
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UNE EN ISO 4871
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NEN EN ISO 4871
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DIN EN ISO 11201
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BS EN ISO 11201
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NF EN ISO 11201
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UNI EN ISO 11201
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UNE EN ISO 11201
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NEN EN ISO 11201
1,868
Accredited labs
20
Countries
Showing 376–393 of 393 labs
(HSG 248) – 2021
ASB/10 based on HSG 248
(PCM) based on HSG 248
ASB/6 based on HSG 248
BS EN ISO 14644-1:2015
+ 3 more
VWR International
Active
TEMPERATURE
parameters and ranges)
indicators or recorders
WEIGHING INSTRUMENTS
Vintec Laboratories
Active
(HSG 248) – 2021
(PCM) based on HSG 248
P052 based on HSG 248
WSP UK
Active
(HSG 248) – 2021
AFC based on HSG 248
(PCM) based on HSG 248
SSA based on HSG 248
EN 13501-2
DIN 51363-2
BS 1363-1
BS 476: Part 21:1987 Section 5
ISO 834:1975:Sections 5, 6, 7
+ 3 more
Wessex Power Technology
Active
TEMPERATURE
controllers, and recorders)
RELATIVE HUMIDITY
Analysts’ Guide (HSG 248)
(PCM) based on HSG 248
staining based on HSG 248
(HSG 248) – 2021
SOP 12 based on HSG 248
(PCM) based on HSG 248
SOP 11 based on HSG 248
Westward Laboratories
Active
ISO 21528-2
BS ISO 4832:2006
BS ISO 16649-2:2001
Method No 2.9 based on BS EN ISO
Method No 2.12 based on BS EN
+ 3 more
Wil-Test Solutions
Active
BS 1377-2:2022
BS 1377-9:1990
DIN EN 1097-5
BS EN ISO 17892-1:2014+A1:2022
purposes (BS 1377-2:2022
Winkhaus (UK)
Active
DIN EN 12046-2
DIN EN 12094-8
DIN EN 949
BS 6375-2:2009
DIN EN 950
+ 3 more
Wishart Group (NI)
Active
TIME INTERVAL
Betriebsübertragungsmaß
TEMPERATURE
ROTATION SPEED
Wood Group UK
Active
IEC 61400-12-1
IEC 61400-12-3
IEC 61400-50
IEC 61400-12
IEC 61400-50-2
+ 3 more
i2 FAST
Active
BS 4401-1:1998 Using
N008-1 based on BS EN
ISO 12966-4 2015
N008-2 based on BS EN
N011 based on BS 4401-9:1975 and BS 770-
+ 3 more
ifp-labs UK West Yorkshire
Active
on BS 4401:Part 3:1970(1986)
ISO 12966-1:2014 and
ISO 12966-4
CH 4026 based on BS 5766:Part
CH 4001 based on BS EN 12014-
+ 3 more
No matching labs found.