
Specification For Rungs For Dog-step Ladders
出版:British Standards Institution

专家解读视频
Describes the types, dimensions, material, manufacture and designation of rungs for dog-step ladders. Dog-step ladders, formed from single rungs, may only be used where fixed vertical ladders with stringers cannot be installed and should serve only to bridge minor differences in height. BS AMD 8251 RENUMBERS THIS STANDARD TO BS EN 29519
© British Standards Institution 2013
Renumbered and superseded by BS EN 29519
Supersedes 89/74088 DC.
(09/2003)
ISO 9519:1990 - Identical