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
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Showing 701–725 of 1,670 labs
Intona
Active
and Appx. 3 of HSG 227 (2004))
Executive guides HSG 264 (2012)
(HSG 264, 2012)
Isserstedt Prüfmaschinen
Active
Härte* 20 HRA
Härtevergleichsplatten
20 HRB
20 HRC
40 HRD
+ 3 more
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
JOMA INGENIERÍA Y MONTAJES
Active
UNE-EN ISO 16283-1
UNE-EN ISO 16283-3
UNE-EN ISO 16283-2
UNE 320001
ISO/IEC 18045
ISO/IEC 15408
CEM ISO
ISO/IEC 24759
+ 2 more
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
elektronische Waagen
Innen- und Tiefenmaße
Konventioneller
+ 2 more
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
Ebenheitsabweichung
verkörperungen z.B.
platten nach DIN 876:1984
Geradheitsabweichung
ebener Flächen, z.B.
+ 3 more
Johnson and Allen
Active
DC CURRENT
INSPECTION EQUIPMENT
AC CURRENT 50 Hz RMS
uncertainties may be increased.
Johs. Boss
Active
Außengewinde
Flankendurchmesser 3 mm bis 100 mm
0,5 mm bis 6 mm)
unsymmetrischem Profil
schiedlichen Ausgabeständen gestattet.
+ 3 more
MIL-PRF-46103E
DIN EN ISO 15106-3
DIN EN ISO 1522
DIN EN ISO 1523
ISO 16935:2007
+ 3 more
CD45 Percp+CD16+56+CD3
CD4
CD45 Percp+CD4+CD8
Adalimumab
Anti-Adalimumab Antikörper
+ 3 more
Jurjanz
Active
Parallelendmaße aus 0,5 mm
DIN EN ISO 3650:1999
Parallelendmaße aus > 100 mm
Messschieber für
1350 mm
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KB Prüftechnik
Active
Härteprüfmaschinen nach 100 HBW
Brinell- und
226 HBW
messeinrichtungen von
Härteprüfmaschinen
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basophile, eosinophile, Granulozyten
Differenzialblutbild
Erythrozyten
Erythrozytenverteilungsbreite
(RDW)
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KOLLMORGEN Europe
Active
IEC 61000-4-2: 2008
VDE 0847-4-2
IEC 61000-4-4: 2012
VDE 0847-4-4
IEC 61000-4-5: 2005
+ 3 more
KP Acoustics Research Labs
Active
BS EN ISO 10140-2:2021
ISO 3745
ISO 7171
IEC 60601-1
accordance with BS EN ISO 5349-1
KRIWAN Testzentrum
Active
IEC 61000-4-2: 2008
IEC 61000-4-3: 2006
IEC 61000-4-4: 2012
IEC 61000-4-5: 2005
IEC 61000-4-6: 2013
+ 3 more
KROMSCHROEDER
Active
Caudal m3/h 0,010 m3/h Q 250 m3/h 0,
Caudal m3/h 0,16 m3/h Q 2500 m3/h 0,
KSW Kalibrierservice
Active
Gleichspannung 100 µV
Messgeräte 220 mV
> 2,2 V
> 11 V
> 22 V
+ 3 more
Kapraun Prüfdienst
Active
Railway brake — magnetic track brakes (U
− Ebenheit
− Geradheit
− Winkelnormale
auch als Vor-Ort-Kalibrierung
+ 3 more
IEH
Active
DIN EN 60034-15
VDE 0530-15
IEC 60034-15
DIN EN 60044-7
VDE 0414-44-7
+ 3 more
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