BS 4211:1987:1992 Edition
$102.76
Specification for ladders for permanent access to chimneys, other high structures, silos and bins
Published By | Publication Date | Number of Pages |
BSI | 1992 | 18 |
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.