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 201–225 of 393 labs
I2 Analytical
Active
staining based on HSG 248.
(HSG 248) – 2021
(PCM) based on HSG 248
A007B based on BS EN15051-2:2013 +1:2016
DIN EN 12457-3
+ 3 more
ITS Testing Services (UK)
Active
BS EN ISO 1833-1:2020
And the following parts of ISO 1833
ISO 1833-4:2017/EU Reg. method 2ISO 1833
ISO 1833-3: 2019
ISO 1833-6: 2019
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ASTM D 5443
ASTM D2892 (modified)
ASTM D2503
ASTM D4052 (modified)
ASTM D2887 (modified)
+ 3 more
DC Resistance
DC VOLTAGE
Temperatur-Simulation
AC CURRENT
Base metal thermocouples
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ASTM D3338
ASTM D 2624
ASTM D 5006
ASTM D 2386
ASTM D7153
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ITS Testing Services (UK)
Active
UK 3725 based on ASTM D2163
and BS EN 15984:2011-07
IP 411, ISO 6251
ASTM D6667 mod
ISO 8973 modified
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DC Resistance
AC VOLTAGE (continued)
AC POWER
AC CURRENT
Generation (continued)
+ 3 more
Intona
Active
and Appx. 3 of HSG 227 (2004))
Executive guides HSG 264 (2012)
(HSG 264, 2012)
J B-Monitor
Active
(HSG 248) – 2021
No 1 based on HSG 248 – 2021
(PCM) based on HSG 248 – 2021
No 3 based on HSG 248 – 2021
(PCM) based on HSG 248
+ 1 more
JCS Technology
Active
ISO 178
BS 5350:Part C13
BS 2782 Part 10 Method 1005
BS EN ISO 14125
MIL-STD 810G:2008 Method 501.5
+ 3 more
Jackson and Keay
Active
BS EN ISO 11623:2015
BS EN ISO 18119:2018+A1:2021
BS EN ISO 10460:2018
BS EN 20745:2020
Javer Labs
Active
MIL-STD-810G, Method 508:7
BS 2011:2.1 Ca:1977
(IEC 60068-2-10:2005+A1:2018,
MIL-STD-810H, Method 508:8
Johnson and Allen
Active
DC CURRENT
INSPECTION EQUIPMENT
AC CURRENT 50 Hz RMS
uncertainties may be increased.
K B Calibration Services
Active
LENGTH
ended (excluding length bars)
Chronic progressive external
Dial gauges and dial test
Caliper Gauges
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KP Acoustics Research Labs
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BS EN ISO 10140-2:2021
ISO 3745
ISO 7171
IEC 60601-1
accordance with BS EN ISO 5349-1
Kiwa
Active
DIN EN 13079
BS 1212-4:1991 Clause 4, 13, 14
DIN EN 14622
BS 1212-3:1990 Clause 4
DIN EN 14623
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Kiwa
Active
DIN EN 55011: 2018
IEC/CISPR 22
DIN EN 55016-2-1
IEC 61326-2-2: 2012
IEC 61000-6-1
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Kiwa
Active
DIN EN 16510-2-3
DIN EN 16510-2-1
DIN EN 13229
DIN EN 16510-1
DIN EN 13240
+ 3 more
Kiwa
Active
DIN EN 55011: 2018
AS/NZS CISPR 11:2004
EN 55011 2016 + A1 2017 + A11 2020
IEC/CISPR 14-1
DIN EN 55013
+ 3 more
Kordus Consulting
Active
and Appendix 3 of HSG 227 (2004))
Appendix 5 of HSG 227 (2004))
Kova Asbestos Consultants
Active
(HSG 248) – 2021
(PCM) based on HSG 248
SAS 02 based on HSG 248
Kovia
Active
Appendix 5 of HSG 227 (2004))
HSG 227 (2004)
HSG 264 (2012) and Appendix 3 of
LAB (UK)
Active
(HSG 248) – 2021
(PCM) based on HSG 248
MAAM 05 based on HSG 248
(HSG 264, 2012)
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