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BSi – The company, BSI British Standards, is a national standards body of the United Kingdom (NBS) and it was actually the very first one in the world. It represents national and social interests of Great Britain in all European and international standardization organizations and in the development of business information of British institutions of all sizes and sectors. BSI British Standards cooperates with manufacturing and service industries, various companies, the government and with consumers as well in order to facilitate the production of British, European and international standards. A part of BSI Group, BSI British Standards, works closely with the government of the United Kingdom, especially in the Department for Innovations, Universities and Skills (DIUS).
Sound power levels of noise sources. Guide for the use of basic standards and for the preparation of noise test codes.
WITHDRAWN published on 30.1.1981
Selected format:Sound power levels of noise sources. Precision methods for determination of sound power levels for broad-band sources in reverberation rooms.
WITHDRAWN published on 30.1.1981
Selected format:Sound power levels of noise sources. Precision methods for determination of sound power levels for broad-band sources in reverberation rooms.
WITHDRAWN published on 28.3.1991
Selected format:Sound power levels of noise sources. Precision methods for determination of sound power levels for discrete-frequency and narrow-band sources in reverberation rooms.
WITHDRAWN published on 30.1.1981
Selected format:Sound power levels of noise sources. Precision methods for determination of sound power levels for discrete-frequency and narrow-band sources in reverberation rooms.
WITHDRAWN published on 29.3.1991
Selected format:Sound power levels of noise sources. Engineering methods for determination of sound power levels for sources in special reverberation test rooms.
WITHDRAWN published on 30.1.1981
Selected format:Sound power levels of noise sources. Engineering methods for determination of sound power levels for sources in special reverberation test rooms.
WITHDRAWN published on 29.3.1991
Selected format:Sound power levels of noise sources. Engineering methods for determination of sound power levels for sources in free-field conditions over a reflecting plane.
WITHDRAWN published on 30.11.1981
Selected format:Sound power levels of noise sources. Precision methods for determination of sound power levels for sources in anechoic and semi-anechoic rooms.
WITHDRAWN published on 30.1.1981
Selected format:Sound power levels of noise sources. Survey method for determination of sound power levels of noise sources.
WITHDRAWN published on 31.7.1981
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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