林业和园林机械.带内燃机的便携手持式机械的噪

文章摘要:This International Standard specifies a noise test code for determining, efficiently and under standardized conditions, the noise emission characteristics of portable hand-held, combustion engine powered forest machines such as chain saws, brush-cutters, grass trimmers, pole-mounted powered pruners, hedge trimmers and garden blowers. Noise emission characteristics include the A-weighted emission sound pressure level at the operator position and the A-weighted sound power level.

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