|Document ID (ISN)||64063|
|ISSN - Serial title
||0003-6870 - Applied Ergonomics
|Convention or series no.
||Earmuff effectiveness against chainsaw noise over a 12-month period
||Aug. 1993, Vol.24, No.4, p.279-283. Illus. 6 ref.
||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.
||hearing protection; New Zealand; logging; chain saws; earmuffs; noise level
||hearing damage risk criteria; sound attenuation; evaluation of equipment
||D - Periodical articles
|Country / State or Province||New Zealand|
||Noise, hearing and vibration
|Broad subject area(s)
Forestry and logging
Hand and portable tools