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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Microtech Services (Wessex)
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ISO 7251
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ISO 6888-3
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2) A:6c based on ISO 21528-1:2017 by mos
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Mimete Srl Unipersonale
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ASTM B212-21
ASTM E1019-24
ASTM B527-24
BS EN ISO 3923-1
ASTM B417-22
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Minebea Intec Bovenden
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Konventioneller
Wägewert/
Massenormale
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
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Bacillus cereus Toxin
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Salmonella spp.
Shigella spp.
Staphylococcus aureus Toxin
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ETSI EN 319 412
ETSI EN 319 401
ETSI EN 319 411-2
ETSI EN 319 411-1
Mitutoyo Deutschland
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Parallelendmaße 0,5 mm
DIN EN ISO 3650:1999
Parallelendmaße
> 10 mm
Parallelendmaße > 100 mm
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Mobiler Kalibrierdienst Fini
Active
Gleichspannung 3 mV
Messgeräte 10 mV
> 100 mV
> 220 mV
> 11 V
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IEC 61000-4-7
IEC 61000-4-15
IEC 61000-4-30
IEC 61400-21
IEC 61400-21-1
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Temperatur 50 °C
Railway brake handbooks (UIC 547)
1) In den CMC sind die erweiterten Messu
IEC 61000-4-2: 2008
VDE 0847-4-2
IEC 61000-4-3: 2006
VDE 0847-4-3
IEC 61000-4-4: 2012
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Mühlenkreiskliniken AöR Institut für Laboratoriumsmedizin, Transfusionsmedizin und Mikrobiologie
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Differentialblutbild
Kleines Blutbild (maschinell)
Thrombozyten
Unreife Thrombozyten (IPF)
Urinsediment (maschinell)
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DIN EN ISO 717-1
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DIN EN ISO 10140-2
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Pistonfonen und von
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Pistonphonen und von (bezogen auf 20 µPa
31,5 Hz bis 16 kHz
(bezogen auf 1 V/Pa)
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DIN 4150-1
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München Klinik gGmbH Medizet - Institut für Laboratoriumsmedizin und medizinische Mikrobiologie
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Erythrozyten
Basophile Granolozyten
Eosinophile Granulozyten
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NATEC Sensors
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− Durchfluss von Flüssigkeiten
Gleichspannung U
(Simulation des Signals
generators)
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NEOTES Ambiente e Qualità
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DIN EN 1186-3
DIN EN 17322
EPA 3535
BS EN 15662
EPA 3015
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2 · 10–6 mol/mol C 100 · 10–6 mol/mo
0,1 · 10–2 mol/mol < C 2,5 · 10–2 mol/
1 · 10–6 mol/mol C 100 · 10–6 mol/mo
5 · 10–6 mol/mol C 20 · 10–6 mol/mol
0,15 · 10–2 mol/mol C 20 · 10–2 mol/
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NORMEC ABIOLAB
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NF T 90-412
DIN EN ISO 7899-1
DIN EN ISO 10304-1
DIN EN ISO 6888-2
NF V08-054
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NORMEC QS
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NEN-EN 13361
ISO 13362
NEN-EN 13491
DIN EN 13493
NEN-EN 13492
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NSF Wales Limited
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BS EN ISO 7686:2005
DIN EN 997
DIN EN 13079
DIN ISO 10381-7
DIN EN 14622
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Narda Safety Test Solutions
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Elektrische Feldstärke /
2 V/m
2,5 V/m
1 V/m
Magnetische Feldstärke /
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Nature’s Consultancy
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(HSG 248) – 2021
(PCM) based on HSG 248
DOC/002 based on HSG 248)
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