Norm

NEN-EN-ISO 4869-3:2007 en

Akoestiek - Gehoorbeschermingsmiddelen - Deel 3: Meting van de demping van gehoorbeschermers van het type "oorkap" met behulp van een akoestische testopstelling

106,87

Over deze norm

Status Definitief
Aantal pagina's 11
Commissie Akoestiek
Gepubliceerd op 01-07-2007
Taal Engels
This part of ISO 4869 specifies a method for measuring the insertion loss of ear-muff type hearing protectors using an acoustic test fixture. The method is applicable to the investigation of production spreads of performance as part of type approval or certification procedures, and to the investigation of the change of performance with age. It is intended to ensure that ear-muff hearing protector samples submitted for subjective testing of attenuation according to ISO 4869-1 have performances typical of the type. The method specified in this part of ISO 4869 is not applicable as the basic test for type approval. Performance data obtained by this method are not intended to be quoted as representing the real-ear sound attenuation of an ear-muff, nor the protection provided by the ear-muff. For the testing of certain ear-muffs (such as those attached to safety helmets, or those with contoured earcups or ear-cushions, or supra-aural ear-muffs), the procedure described in this part of ISO 4869 might need to be modified.

Details

ICS-code 13.340.20
Nederlandse titel Akoestiek - Gehoorbeschermingsmiddelen - Deel 3: Meting van de demping van gehoorbeschermers van het type "oorkap" met behulp van een akoestische testopstelling
Engelse titel Acoustics - Hearing protectors - Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture
Vervangt
Normatieve verwijzingen
  • 89/686/EEG, Persoonlijke beschermingsmiddelen

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