Publisher : SN

NS 4815:1982 PDF

Determination of occupational noise exposure

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NS 4815-2:2006 PDF

Measurement of occupational noise explosure of workers — Part 2: Engineering method

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NS 4816:1982 PDF

Acoustics - Determination of sound power levels of noise sources - Guidelines for the use of basic standards and for the preparation of noise test codes (ISO 3740:1980)

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NS 4817:1982 PDF

Acoustics — Determination of sound power levels of noise sources — Precision methods for broad-band sources in reverberation rooms

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NS 4818:1982 PDF

Acoustics — Determination of sound power levels of noise sources — Precision methods for discrete-frequency and narrow-band sources in reverberation rooms

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NS 4819:1982 PDF

Acoustics — Determination of sound power levels of noise sources — Engineering methods for special reverberation test rooms

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NS 4821:1982 PDF

Acoustics — Determination of sound power levels of noise sources — Precision methods for anechoic and semi-anechoic rooms ( ISO 3745:1977)

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NS 4822:1982 PDF

Acoustics - Determination of sound power levels of noise sources - Survey method

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NS 4824:1990 PDF

Acoustics — Expression of physical and subjective magnitudes of sound or noise in air

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NS 4825:1982 PDF

Paper, board and pulps — Units for expressing properties

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