BS 4211:1987 Specification for ladders for permanent access to chimneys, other high structures, silos and bins (AMD 7064) (No longer current but cited in Building Regulations guidance)
Specifies requirements for steel ladders with single bar rungs intended to be fixed permanently to chimneys in continuous vertical lengths or to buildings and other structures, to provide means of access.
Superseded by BS 4211:1994.
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