I.S. EN ISO 4869-4:2000
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
ACOUSTICS - HEARING PROTECTORS - PART 4 - MEASUREMENT OF EFFECTIVE SOUND PRESSURE LEVELS FOR LEVEL-DEPENDENT SOUND-RESTORATION EAR-MUFFS
Hardcopy , PDF
04-06-2016
English
18-08-2000
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Test conditions
5 Test procedure
6 Computation of level-dependent A-weighted effective sound
pressure levels
7 Reporting of data
Annex A (informative) Combining physical and subjective test
results to calculate ear-muff effective levels
Annex ZA (normative) Normative references to international
publications with their relevant European publications
Bibliography
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