EN 131-4:2020现行
Ladders - Part 4: Single or multiple hinge-joint ladders
出版：Comite Europeen de Normalisation
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基本信息
标准编号： EN 131-4:2020
出版单位：Comite Europeen de Normalisation
标准页数：20
标准简介
This document specifies the requirements, tests and marking of hinged combination ladders with one or several hinge joints. This document is not applicable to hinge-joints of combination and standing ladders as defined by EN 131-1. This part of the standard is intended to be used in conjunction with EN 131-1, EN 131-2 and EN 131-3.
