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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).
Optics and photonics. Optical materials and components. Test method for striae in infrared optical materials.
Standard published on 21.5.2025
Selected format:Tracked Changes. Optics and photonics. Optical materials and components. Test method for striae in infrared optical materials.
Standard published on 23.5.2025
Selected format:Optics and photonics. Optical materials and components. Test method for bubbles and inclusions in infrared optical materials.
Standard published on 16.5.2018
Selected format:Solid biofuels — Determination of content of heavy extraneous materials larger than 3,15 mm.
Standard published on 11.2.2026
Selected format:Tracked Changes. Solid biofuels. Determination of content of heavy extraneous materials larger than 3,15 mm.
Standard published on 13.2.2026
Selected format:Test conditions for numerically controlled broaching machines. Testing of accuracy. Vertical surface type broaching machines.
Standard published on 14.2.2020
Selected format:Determination of urea content in urea-based fertilizers by high performance liquid chromatography (HPLC).
Standard published on 31.3.2017
Selected format:Fertilizers and soil conditioners. Determination of monosilicic acid concentrations in nonliquid fertilizer materials.
Standard published on 6.11.2020
Selected format:Nanotechnologies. Measurements of particle size and shape distributions by scanning electron microscopy.
Standard published on 13.4.2023
Selected format:Information technology — Office equipment — Method for the determination of toner cartridge yield for monochromatic electrophotographic printers and multi-function devices that contain printer components.
Standard published on 26.11.2025
Selected format:Latest update: 2026-08-31 (Number of items: 2 298 959)
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