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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).
Determination of the specific surface area of powders. Recommended air permeability methods.
WITHDRAWN published on 31.8.1977
Selected format:Methods for the determination of specific surface of powders.. Calculation from the particle size distribution.
WITHDRAWN published on 31.3.1970
Selected format:Liquid flow measurement in open channels. Rectangular, trapezoidal and U-shaped flumes.
WITHDRAWN published on 30.5.2008
Selected format:Flow measurement structures. Rectangular, trapezoidal and U-shaped flumes.
WITHDRAWN published on 28.2.2013
Selected format:Flow measurement structures - Rectangular, trapezoidal and U-shaped flumes.
WITHDRAWN published on 16.2.2018
Selected format:Spur and helical gears. Basic rack form, pitches and accuracy (diametral pitch series).
WITHDRAWN published on 25.10.1967
Selected format:Spur and helical gears. Basic rack form, modules and accuracy (1 to 50 metric module).
WITHDRAWN published on 23.2.1970
Selected format:Spur and helical gears. Method for calculation of contact and root bending stress limitations for metallic involute gears.
WITHDRAWN published on 30.9.1986
Selected format:Spur and helical gears. Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth.
WITHDRAWN published on 15.6.1996
Selected format:Spur and helical gears. Definitions and allowable values of deviations relevant to radial composite deviations and runout information.
WITHDRAWN published on 15.10.1997
Selected format:Latest update: 2026-01-23 (Number of items: 2 257 393)
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