UNI EN 352-4 : 2007
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
HEARING PROTECTORS - SAFETY REQUIREMENTS AND TESTING - PART 4: LEVEL-DEPENDENT EAR-MUFFS
16-06-2021
01-01-2007
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Testing
6 Information supplied by the manufacturer
7 Marking
Annex A (normative) Test results,
uncertainty of measurement
Annex B (informative) Determination of
criterion level and spread out
sound transmission for
level-dependent ear-muffs
Annex ZA (informative) Clauses of this
European Standard addressing
essential requirements or other
provisions of EU Directives
Bibliography
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