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
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QS-Grimm
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Parallelendmaße * 0,5 mm
DIN EN ISO 3650:1999
Zylindrische Normale 1 mm
Innenzylinder *
> 100 mm
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QUACER
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UNE-EN ISO 140-5
UNE-EN ISO 16283-3
UNE-EN ISO 16283-2
UNE-EN ISO 140-7
UNE-EN ISO 16283-1
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QUALILAB
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EN 12966: 2014 Section 4.5.4
DIN EN 55025: 2018
DIN EN 60068-2-30
(CISPR 25:2002) Section 6
ISO 11452-4: 2020
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QUALIO
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EN 13087-2
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Qopas
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Koordinatenmessgeräte geräte mit einem
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DEA Hexagon Metrology
S.p.A., Turin, I
Associates EMS Products, ≤ 1500 mm
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(HSG 248) – 2021
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QSOP 03 based on HSG 248
R-TECH Services
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ÖNORM EN ISO 17637
BS EN ISO 15614-1:2017
ASTM A 370
DIN EN 10080
BS EN ISO 9015-1:2011
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DIN EN ISO 2808
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DIN EN 12697-28
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DIN EN 846-7
DIN EN 25814
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RIO
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RMA Mess- und Regeltechnik
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Durchfluss von Gasen
Volumendurchfluss 50 m³/h
Railway brakes — brake performance (UIC
(Hochdruck Erdgas
5 bis 51 bar)
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ROTA YOKOGAWA
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Masse m strömender
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1) In den CMC sind die erweiterten Messu
Massedurchfluss dm / dt
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Radiomotive
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ETSI EN 301 489-6
DIN EN 61326-2-6
IEC 61326-3-1
IEC 61326-3-2
IEC 60669-2-5
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Ramcare
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DC CURRENT
DC VOLTAGE
thermometer Pt100
ROTATIONAL SPEED
Generate
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IEC 60335-1: 2010
VDE 0700-1
DIN EN 60335-2-2
DIN EN 60335-2-3: 2002
DIN EN 60335-2-4
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