Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
EN ISO 4869-2:1995
Năm ban hành 1995
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English Acoustics Hearing protectors Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (ISO 4869-2:1994)
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Giá:
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Phạm vi áp dụng
Scope of standard Describes three methods (the octave-band, HML and SNR methods) for estimating the A-weighted sound pressure levels effective when hearing protectors are worn. The methods are applicable to either the sound pressure level or the equivalent continuous sound pressure level of the noise. Although primarily intended for steady noise exposures, the methods are also applicable to noises containing impulsive components. They are not suitable for use with peak sound pressure level measurements.
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