Chrániče sluchu - Bezpečnostní požadavky - Část 5: Mušlové chrániče sluchu s aktivním snižováním hluku (Norma k přímému použití jako ČSN).

The information about the standard:

Designation standards: ČSN EN 352-5-ed.2
Classification mark: 832121
Catalog number: 512124
Publication date standards: 1.6.2021
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN

Annotation of standard text ČSN EN 352-5-ed.2 (832121):

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