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ISO 11783-6
9 Tunnel and mixed tunnel slides
for installation in accordance with the recommendations of BS 8524-2
you will need to be completely familiar with product types
Acoustics. Hearing protectors - Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture Ingestion-build-59651 ISO 11783-61 Scope 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 muffhearing protector samples submitted for subjective testing of
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