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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).
Specification for analogue voltage ranges and logic levels for mains operated nuclear instruments.
WITHDRAWN published on 30.9.1975
Selected format:Specification for a.c. disconnectors (isolators) and earthing switches of rated voltage above 1 kV.
WITHDRAWN published on 29.8.1975
Selected format:Specification for alternating current disconnectors and earthing switches.
WITHDRAWN published on 31.12.1990
Selected format:Specification for polypropylene waste pipe and fittings (external diameter 34.6 mm, 41.0 mm and 54.1 mm).
WITHDRAWN published on 30.1.1976
Selected format:Specification for plastics waste pipe and fittings.
WITHDRAWN published on 1.3.1984
Selected format:Specification for thermoplastics waste pipe and fittings.
WITHDRAWN published on 29.9.1989
Selected format:Methods of test for starch hydrolysis products.
WITHDRAWN published on 29.10.1976
Selected format:Specification for horizontal end-suction centrifugal pumps (16 bar).
WITHDRAWN published on 30.9.1975
Selected format:Specification for safety of domestic gas appliances. Central heating boilers and circulators.
WITHDRAWN published on 31.3.1983
Selected format:Safety of domestic gas appliances. Specification for central heating boilers and circulators.
WITHDRAWN published on 31.12.1986
Selected format:Latest update: 2025-09-28 (Number of items: 2 235 583)
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