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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).
Methods of testing plastics. Chemical properties. Determination of ash of polyalkylene terephthalates.
WITHDRAWN published on 30.4.1991
Selected format:Methods of testing plastics. Chemical properties. Determination of water absorption at 23°C with allowance for water-soluble matter.
WITHDRAWN published on 28.2.1983
Selected format:Methods of testing plastics. Miscellaneous methods..
WITHDRAWN published on 20.11.1958
Selected format:Methods of testing plastics. Optical and colour properties, weathering. Determination of refractive index of transparent plastics.
WITHDRAWN published on 1.4.1992
Selected format:Methods of testing plastics. Optical and colour properties, weathering. Determination of ultraviolet radiation intensity using polysulphone film.
WITHDRAWN published on 30.9.1988
Selected format:Methods of testing plastics. Optical and colour properties, weathering. Methods of exposure to laboratory light sources. General guidance.
WITHDRAWN published on 15.9.1995
Selected format:Methods of testing plastics. Optical and colour properties, weathering. Determination of changes in colour and variations in properties after exposure to daylight under glass, natural weathering or laboratory light sources.
WITHDRAWN published on 15.5.1999
Selected format:Methods of testing plastics. Optical and colour properties, weathering. Determination of yellowness index. Determination of the colour of near-white or near-colourless materials.
WITHDRAWN published on 29.10.1976
Selected format:Methods of testing plastics - Optical and colour properties, weathering -.
WITHDRAWN published on 31.5.2007
Selected format:Methods of testing plastics. Methods 501 apparent density and bulk factor of moulding materials.
WITHDRAWN published on 1.5.1961
Selected format:Latest update: 2026-07-05 (Number of items: 2 286 116)
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