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
1,670
Accredited labs
18
Countries
Showing 101–125 of 1,670 labs
Absolute Calibration
Active
DC Resistance
CFH-Gen, Macula-Degeneration
DC RESISTANCE (continued)
DC VOLTAGE
DC VOLTAGE (continued)
+ 3 more
Acorn Analytical Services
Active
(HSG 248) – 2021
(PCM) based on HSG 248
staining based on HSG 248
(HSG 264, 2012)
Appendix 5 of HSG 227
Acoustic Design Technology
Active
ISO 7171
BS EN ISO 140-4:1998
HTM 08-01
ISO 1407
BS EN ISO 717-2:2020
ISO 11654
BS EN ISO 10140-2:2021
ISO 7171
ISO 354
BS EN ISO 10140-3:2021
+ 3 more
Sound Calibrators
Pistonphones
based:
level
Microphones
+ 2 more
DIN EN ISO 11127-6
DIN EN 13727
1) BS EN ISO 11930:2019+
2) QMIC WI 22, based on BS EN
Taupunkttemperatur
Railway braking — urban guided transport
Temperaturtransmitter
Widerstandssensor *)
–30 °C
+ 3 more
Air Surveys
Active
(HSG 248) – 2021
APP 7 based on HSG 248
(PCM) based on HSG 248
(PCM) based on HSG 248)
APP 15 based on HSG 248
+ 2 more
BS EN ISO 16283-1:2014+A1:2017BS EN ISO
BS EN ISO 140-4:1998
ISO 1407
ISO 7171
BS EN ISO 9972:2015
+ 1 more
(HSG 248) – 2021
AEC 1 based on HSG 248
(PCM) based on HSG 248
AEC 6 based on HSG 248
Airbus Defence and Space
Active
- Gleichspannung
/ Messgeräte
1 µV
Quellen
> 1 V
+ 3 more
Airtech Analysis
Active
(HSG 248) – 2021
(PCM) based on HSG 248
staining based on HSG 248
(HSG 264, 2012)
Appendix 5 of HSG 227 (2004))
ISO 23351-1
ASTM E 1354
DIN EN ISO 717-1
DIN EN ISO 717-2
DIN EN ISO 3382-1
+ 3 more
BS ISO 18283:2022
ASTM D2234 (location E)
ASTM D2013 (location B)
BS ISO 5074:2015; and
ASTM D409:2016
+ 3 more
Alkali Environmental
Active
BS EN ISO 16911-1:2013 using
DIN EN 14181
DIN EN 13126-19
DIN EN 15058
DIN EN 14789
+ 3 more
Allgäuer Messzentrum
Active
Durchmesser 1 mm
510 mm
Rundheitsabweichung 1 mm
Parallelitätsabweichung
Rundheitsabweichung
+ 3 more
Allied Aerosystems
Active
DC Resistance
2.92 mm systems (continued)
DC VOLTAGE
AC CURRENT
DC Power
+ 3 more
No matching labs found.