BS 1968:1953 Specification for floats for ballvalves (copper) (Incorporating amendment Nos. 1 and 2)
Gives requirements for a range of spherical copper floats suitable for attachment to specific ballvalves.
AMD 3220 November 1958. AMD 4667 September 1962 - Indicated by a sideline in the margin.
British Standards Institution
With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.
389 Chiswick High Road