BS 3243:1990 Specification for hand-operated chain blocks (AMD 6778) (AMD 9106) (Withdrawn)
Requirements for chain blocks to ensure safety in use. Includes performance testing and marking and a system of classification based on ISO 4301.
Superseded by BS EN 13157:2004. Supersedes BS 3243:1973. Where chain blocks are used in conjunction with runway beams, the beams should be designed and tested in accordance with BS 2853.
British Standards Institution
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