Hearing protectors - Safety requirements - Part 5: Active noise reduction earmuffs
NORM herausgegeben am 1.6.2021
Bezeichnung normen: ČSN EN 352-5-ed.2
Zeichen: 832121
Katalog-Nummer: 512124
Ausgabedatum normen: 1.6.2021
Zahl der Seiten: 12
Gewicht ca.: 36 g (0.08 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN
This document is applicable to active noise reduction (ANR) earmuffs. It specifies requirements on construction, design, performance, marking and user information related to the inclusion of the active noise reduction facility. Active noise reduction earmuffs are designed to provide additional attenuation of external sounds by means of a noise cancellation circuit. This additional attenuation is usually provided at low and mid frequencies. They may be selected for use in low frequency dominated high noise environments