British Standards Institution stamp of quality

Wiktionary Word definitions in Wiktionary
n. (context British English) A certification symbol placed on products by the http://en.wikipedi org/wiki/British%20Standards, based on the letters ''BS''. v (context British transitive English) To approve or certify by awarding the kitemark.

Wikipedia Word definitions in Wikipedia
The Kitemark is a UK product and service quality certification mark which is owned and operated by The British Standards Institution ( BSI Group ). The Kitemark is most frequently used to identify products where safety is paramount, such as crash helmets, ...