BS 497-1:1976
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for manhole covers, road gully gratings and frames for drainage purposes Cast iron and cast steel
Hardcopy , PDF
10-15-1994
English
09-30-1976
Materials, workmanship, protective coating, quality control, inspection, marking, grading, dimensions and design features. Appendices detail loading tests and summarize optional variations.
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