Acoustics. Hearing protectors - Measurement of effective sound pressure levels for level-dependent sound-restoration ear muffs
Acoustics. Hearing protectors - Measurement of effective sound pressure levels for level-dependent sound-restoration ear muffs
Мы хотим включить аналитику посещений, чтобы понимать, что искать людям на сайте. Без вашего согласия счётчики не загружаются. Политика конфиденциальности
1 Scope This Technical Report specifies a physical test method for level-dependent sound-restoration ear-muffs. The physical measurements are made with the acoustic test fixture (ATF) according to ISO/TR 4869‑3 or with a suitable head and torso simulator (HATS) with a suitable acoustic isolation (see clause 7). The results of these tests in combination with the results from the ISO 4869‑1 tests can be used to estimate the effective A-weighted sound pressure level when sound restoration ear-muffs are worn. The method described is not suitable for measurement of the effective sound pressure level under ear-muffs in the case of impulsive noise nor for active noise reduction ear-muffs.
Упомянутые в описании и другие стандарты BS