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Document ID (ISN)55259
CIS number 91-299
Year 1987
Convention or series no. NPL Report Ac 115
Author(s) Shipton M.S.
Title Intercomparison of measurements on ear protectors by subjective and objective test methods (NPL Results)
Bibliographic information National Physical Laboratory, Teddington, Middlesex TW11 OLW, United Kingdom, Sep. 1987. 84p. Illus. Bibl.
Abstract An intercomparison involving 5 European laboratories was carried out with the UK National Physical Laboratory (NPL) acting as the central co-ordinating laboratory. The purpose of the intercomparison was to quantify and identify the origin of discrepancies involved in measuring the attenuation of 5 different types of hearing protector using both subjective and objective procedures (ISO 4869:1981 and ISO/DIS 6290). This report describes the test facilities and procedures used at the NPL and provides detailed results in the form of graphs and tables.
Descriptors (primary) hearing protection; equipment testing; European Communities; United Kingdom
Descriptors (secondary) ISO; sound attenuation; comparative study; earmuffs; description of technique; earplugs
Document type E - Books, reports, proceedings
Country / State or ProvinceUnited Kingdom
Subject(s) Noise, hearing and vibration
Broad subject area(s) Physical hazards
Browse category(ies) Hearing protection