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Document ID (ISN)54087
CIS number 90-1340
ISSN - Serial title 0783-6201 - East African Newsletter on Occupational Health and Safety
Year 1989
Convention or series no.
Author(s) Kahema H., Monyo R.A., Svedberg U.
Title Occupational noise measurement and control in Tanzanian textile mills
Bibliographic information 20 Sep. 1989, No.1, p.12-15. Illus.
Abstract Surveys were conducted in the weaving and spinning sections of Tanzanian textile mills (4 shuttle loomsheds, 1 air-jet loomshed, 3 spinning sections). Equivalent sound pressure levels were 92.0 - 103.8dB(A) in the loomsheds and 91.0-93.7dB(A) in the spinning sections. Frequency analyses and noise rating curves were plotted. Noise emission from the shuttle looms was reduced by 3.2dB(A) by padding and enclosing the points of contact between the shuttle and the mechanism that catches and throws it. However, the solution was of limited practicality, because the padding wore quickly, which necessitated continual adjustment of the loom, and the noise level remained so high that workers had to wear hearing protectors. Replacement of the shuttle with air-jet looms is the only effective long-term solution of the noise problem.
Descriptors (primary) Tanzania, United Republic of; textile industry; weaving; noise
Descriptors (secondary) impact noise; noise level; developing countries; noise measurement; noise control
Document type D - Periodical articles
Subject(s) Noise, hearing and vibration
Broad subject area(s) Physical hazards
Browse category(ies) Noise