Standard No.:	GB/T 17889.1-2012
English Name:	Ladders—Part 1:Terms,types,functional sizes
Chinese Name:	梯子 第1部分：术语、型式和功能尺寸
Chinese Classification:	J09    Hygiene, safety and labor protection
Professional Classification:	GB    National Standard
Issued by:	AQSIQ;SAC
Issued on:	2012-5-11
Implemented on:	2012-12-1
Status:	superseded
Superseded by:	GB/T 17889.1-2021 Ladders―Part 1:Terms,types,functional sizes
Superseded on:	2022-7-1
Superseding:	GB/T 17889.1-1999 Ladders—Part 1：Terms,types,functional sizes
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	394.0
Delivery:	via email in 1 business day

1 Scope This Part of GB/T 17889 defines terms and specifies the general design characteristics of ladders. This Part applies to portable ladders. This Part does not apply to step stools. It does also not apply to ladders designed for specific professional use such as fire brigade ladders, roof ladders and mobile ladders. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

Foreword II 1 Scope 1 2 Normative References 1 3 Terms and Definitions 1 4 Functional Sizes 8 4.1 General 8 4.2 Leaning rung ladders 9 4.3 Standing rung ladders 11 4.4 Combination ladders 13 4.5 Leaning step ladders 15 4.6 Standing step ladders 16 4.7 Standing rung and step ladder 18 Bibliography 19