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Document ID (ISN)64063
CIS number 95-712
ISSN - Serial title 0003-6870 - Applied Ergonomics
Year 1993
Convention or series no.
Author(s) Kirk P.
Title Earmuff effectiveness against chainsaw noise over a 12-month period
Bibliographic information Aug. 1993, Vol.24, No.4, p.279-283. Illus. 6 ref.
Abstract A study to measure the ability of new Peltor H7P3 Grade 4 helmet-mounted earmuffs to reduce the level of chain saw noise reaching forestry workers' ears was undertaken over a one-year period. Attenuation measurements indicated that the earmuffs provided effective hearing protection for loggers over the test period in spite of a decrease in attenuation measured at the 12-month stage. Many of the earmuffs would normally have been replaced before the 12-month stage owing to the discomfort associated with cushion deterioration.
Descriptors (primary) hearing protection; New Zealand; logging; chain saws; earmuffs; noise level
Descriptors (secondary) hearing damage risk criteria; sound attenuation; evaluation of equipment
Document type D - Periodical articles
Country / State or ProvinceNew Zealand
Subject(s) Noise, hearing and vibration
Broad subject area(s) Physical hazards
Browse category(ies) Hearing protection
Forestry and logging
Hand and portable tools
Noise