BS 4211:1987
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for ladders for permanent access to chimneys, other high structures, silos and bins
Hardcopy , PDF
15-08-1994
English
15-06-1992
Class A steel ladders, for permanent attachment to chimneys and other structures. Class B, for permanent attachment to silos, bins and agricultural plant, which may be formed of steel or aluminium.
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