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ISO 11783-6
it is necessary that maritime navigation and radiocommunication equipment and systems are capable to maintaining the overall integrity of marine operations
9 Tunnel and mixed tunnel slides
- Quality control project managers
The test methods do not apply to CRTs which are protected by separate safety screens
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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