NEN EN 352-4 : 2001 AMD 1 2005
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
HEARING PROTECTORS - SAFETY REQUIREMENTS AND TESTING - PART 4: LEVEL-DEPENDENT EAR-MUFFS
01-11-2020
12-01-2013
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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