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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).
Rules for the preparation of detail specifications for semiconductor devices of assessed quality: rectifier bridges. Ambient rated, single phase, in solid (plastics) encapsulation.
WITHDRAWN published on 15.10.1977
Selected format:Optics and optical instruments. Optical transfer function. Definitions and mathematical relationships.
WITHDRAWN published on 15.2.1996
Selected format:Optics and photonics. Optical transfer function. Definitions and mathematical relationships.
WITHDRAWN published on 28.9.2007
Selected format:Optics and optical instruments. Optical transfer function. Principles and procedures of measurement.
WITHDRAWN published on 15.3.1996
Selected format:Optics and photonics. Optical transfer function. Principles and procedures of measurement.
WITHDRAWN published on 31.10.2012
Selected format:Optics and optical instruments. Application. Optical transfer function. Interchangeable lenses for 35 mm still cameras.
WITHDRAWN published on 15.2.1995
Selected format:Optics and optical instruments. Application. Optical transfer function. Lenses for office copiers.
WITHDRAWN published on 15.2.1995
Selected format:Optics and optical instruments. Application. Optical transfer function. Telescopes.
WITHDRAWN published on 15.2.1995
Selected format:Contact lenses. Determination of back vertex power. Method using focimeter with manual focusing.
WITHDRAWN published on 15.8.2001
Selected format:Contact lenses. Determination of back vertex power. Measurement of contact lenses immersed in saline.
WITHDRAWN published on 4.8.2004
Selected format:Latest update: 2026-01-11 (Number of items: 2 254 176)
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