BSI Group
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The British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies standards certificat
BSI Group headquarters building in Gunnersbury, West London, featuring the BSI Group logo
Meeting of the international standards committee for the C++ programming language, hosted at the British Standards Institution in 1997
BSI representative presenting a standards certification to the International Maritime Organization in 2018
Kitemark symbol as seen on an access cover in Newtownards, Northern Ireland
Plugs and sockets for electrical appliances in the United Kingdom originated in the 1870s and were initially two-pin designs. These were initially sold as a mating pair, but gradually standards arose
Lampholder plug from 1893 GEC (London) catalogue
Early GEC 2-pin plug and socket as depicted in the 1893 GEC catalogue
Comparison of (top) the BS 4573 shaver plug and the (bottom) Europlug
BS 4573 shaver supply unit; dual voltage and with isolating transformer