This Standard sets out the minimum constructional and safety requirements for the design and manufactureof portable ladders with timber stiles.The Standard provides for ladders of two duty ratings, viz 'industrial ladders' and 'domestic ladders', which are assigned minimum load ratings.The Standard does not cover ladder accessories such as ladder levellers, ladder stabilizers or stand-off devices, ladder jacks, or ladder straps or hooks that may be installed on or used in conjunction with ladders.