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
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TUV Rheinland Italia
Active
IEC 60335-2-51
DIN EN 60068-2-30
IEC 61000-6-1
IEC 60335-2-54: 2008
DIN EN 50564
+ 3 more
ISO 6529
DIN EN 13744
DIN EN 16523-1
EN 16523-2
ASTM F739-12e1( withdrawn)
+ 3 more
Technische Universität Darmstadt Staatliche Materialprüfungsanstalt Mess- und Kalibriertechnik
Active
Railway braking — thermal analysis (EN 1
Railway — traction effort and braking fo
Railway vehicle dynamics — on-track test
Railway brake disc acoustic emissions (E
Railway wheel squeal and curve noise (EN
+ 3 more
Technische Universität München Institut für Medizinische Mikrobiologie, Immunologie und Hygiene
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Staphylokokken
Treponema pallidum (Cardiolipin
Antikörper)
Legionella spp.
Salmonellen, Shigellen, Yersinia
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ISO 15835-2
DIN EN ISO 6506-1
DIN EN ISO 15630-1
DIN EN ISO 15630-3
IEC 62301
+ 3 more
TechnoTeam Bildverarbeitung
Active
& 2: 2008
Leuchtdichte L /
vom Typ L3 Standard
Normfarbwertanteile x , y /
LED-basierte Farb- und
+ 3 more
ISO 3727-1/IDF 80-1:2001
ISO 5534/IDF 4:2004
ISO 6731/IDF 21:2010
ISO 6734/IDF 15:2010
according to ISO 6091/IDF
+ 3 more
Tecnolab del Lago Maggiore
Active
ISO 37
&10 based on HSG 248
BS EN ISO 6509-1:2014
ISO 815-1
ISO 815-2
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Taupunkttemperatur
Railway braking — urban guided transport
Widerstandssensor
–40 °C bis
> 5 °C bis
+ 3 more
TesT
Active
Kraftaufnehmer und
Kraft (WPM) *
Vibration measuring instruments — test m
maschinen nach DIN
Acoustics — tonality assessment (DIN 456
+ 3 more
Gleichspannung 0 mV
Messgeräte 10 mV
Wechselspannung 0,22 mV
> 220 mV
> 2,2 V
+ 3 more
Test-Fuchs, Fritz Fuchs Gesellschaft mit beschränkter Haftung Kalibrierlaboratorium Deutschland
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Positiver Überdruck p e
> 70 bar
Überdruck p
(ein- oder mehrgängige
Testo Industrial Services
Active
- Gleichspannung
/ Messgeräte
Quellen
Hochspannung
- Gleichstromstärke
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Testo Industrial Services
Active
RELATIVE HUMIDITY
HUMIDITY continued
loggers
Gas Pressure Gauge
Saturated salt capsules
+ 2 more
Tetra Tech Consulting
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(HSG 248) – 2021
RPSCA1 based on HSG 248
(PCM) based on HSG 248
RPSCA2 based on HSG 248
BS 7592:2008, BS 8554:2015
+ 2 more
TetraTec Instruments
Active
Railway brakes — disc brake pads (UIC 54
Volumendurchfluss bzw.
0,01 m
Railway pantographs — requirements for m
39 mL/h
+ 3 more
The Auditing Company
Active
#EN ISO 5164:14
# EN 116-97
# ISO 13736
NEN 4400-1
#ISO 6618
DC CURRENT
DC Resistance
Measurement
DC VOLTAGE
CAPACITANCE
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