On Board Trains Occupational Health and Safety Regulations

Version of section 4.1 from 2006-03-22 to 2015-09-10:


 In this Part, sound level meter means an instrument for measuring levels of sound and impulse sound that meets the standards set out in American National Standards Institute Standard ANSI SI.4-1983, Specification for Sound Level Meters, dated February 17, 1983 and is referred to in that Standard as type 0, 1 or 2. (sonomètre)

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