|Document ID (ISN)||55259|
|Convention or series no.
||NPL Report Ac 115
||Intercomparison of measurements on ear protectors by subjective and objective test methods (NPL Results)
||National Physical Laboratory, Teddington, Middlesex TW11 OLW, United Kingdom, Sep. 1987. 84p. Illus. Bibl.
||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.
||hearing protection; equipment testing; European Communities; United Kingdom
||ISO; sound attenuation; comparative study; earmuffs; description of technique; earplugs
||E - Books, reports, proceedings
|Country / State or Province||United Kingdom|
||Noise, hearing and vibration
|Broad subject area(s)