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GB/T 17889.2-2021: Ladders - Part 2: Requirements, test, marking
Status: Valid GB/T 17889.2: Evolution and historical versions
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| GB/T 17889.2-2021 | English | 879 |
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Ladders - Part 2: Requirements, test, marking
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GB/T 17889.2-2021
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| GB/T 17889.2-2012 | English | RFQ |
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Ladders -- Part 2: Requirements, test, marking
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| GB/T 17889.2-1999 | English | 479 |
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Ladders--Part 2: requirements, testing, marking
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Basic data | Standard ID | GB/T 17889.2-2021 (GB/T17889.2-2021) | | Description (Translated English) | Ladders - Part 2: Requirements, test, marking | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J09 | | Word Count Estimation | 46,497 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 17889.2-2021: Ladders - Part 2: Requirements, test, marking---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Ladders -- Part 2: Requirements, test, marking
ICS 13:110
CCSJ09
National Standards of People's Republic of China
Replacing GB/T 17889:2-2012
Ladders part 2: requirements, tests and marking
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
Introduction V
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Requirements 2
4:1 General requirements 2
4:2 Materials 2
4:3 Design 2
4:4 Surface treatment 3
4:5 Hinge (rotation point) 3
4:6 Opening Limit 3
4:7 Running sticks/pedals/platforms 3
4:8 Ladder foot 3
4:9 Extension Ladder and Section Ladder 3
5 Experiment 4
5:1 General provisions 4
5:2 Strength test 4
5:3 Ladder frame bending test 8
5:4 Lateral deflection test of ladders 9
5:5 Bottom end test of ladder frame 10
5:6 Vertical load test of rungs, pedals and platforms 11
5:7 Torsional test of running bars and pedals 12
5:8 Opening limits and hinge tests for free-standing ladders 13
5:9 Locking device test 15
5:10 Platform tilt test of self-supporting ladder 15
5:11 Ladder foot pull-out test 16
5:12 Handrail test 18
5:13 Maximum extension of the ladder 20
5:14 A state three-piece combination ladder test 20
5:15 Torsional test for free-standing ladders 21
5:16 Test Methods for Plastic Ladders 23
5:17 Durability test of free-standing ladders 25
5:18 Bottom slip test of leaning ladder 31
5:19 Strength test of side balance bar 33
5:20 Strength test of strut-type balance bars 34
5:21 Reclining ladder torsion test 35
6 Signs and Instructions for Use 37
Appendix A (normative) test sequence 38
Reference 40
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents"
drafted:
This document is part 2 of GB/T 17889 "Ladders": GB/T 17889 has released the following parts:
--- Part 1: Terms, types and functional dimensions;
--- Part 2: Requirements, tests and markings;
--- Part 3: Instructions for use;
--- Part 4: Ladders with single or multiple hinges;
--- Part 5: Telescopic ladders;
--- Part 6: Movable platform ladder:
This document replaces GB/T 17889:2-2012 "Ladders - Part 2: Requirements, Tests and Marking", this document and GB/T 17889:2-
Compared with:2012, except for structural adjustment and editorial changes, the main technical changes are as follows:
--- Deleted all wood-related content (see:2012 edition 4:2:4, the third paragraph of 4:4, the third paragraph of 4:7, Figure 7~Figure 9, 4:8
the second paragraph);
--- Changed the scope (see Chapter 1, Chapter 1 of the:2012 edition);
--- Added the terms and definitions of "professional ladders" and "household ladders" (see 3:5, 3:6), and modified the terms of "composite materials" and "thermoplastic materials":
Terms and definitions (see 3:2, 3:3, 3:2, 3:3 of the:2012 edition);
--- Changed the general requirements (see 4:1, 4:1 of the:2012 edition);
--- Changed the material requirements (see 4:2, 4:2 of the:2012 edition);
--- Changed the design requirements (see 4:3, 4:3 of the:2012 edition);
--- Changed the requirements for ladder feet (see 4:8, 4:9 of the:2012 edition);
--- Changed the requirements for extension ladders and sectional ladders (see 4:9, 4:10 of the:2012 edition);
--- Changed the strength test requirements (see 5:2, 5:2 of the:2012 edition);
--- Added the description of the measurement benchmark for the bending test of the ladder frame (see the sixth paragraph of 5:3);
--- Changed the test plan for the ladder with a balance bar in the bottom end test of the ladder frame (see 5:5, 5:5 of the:2012 edition);
--- Increased the torsion test of self-supporting ladders (see 5:15);
--- Changed the test method for plastic ladders and deleted the insulation test (see 5:16, 5:16 of the:2012 edition);
--- Increased the durability test of free-standing ladders (see 5:17);
--- Added the slip test at the bottom of the leaning ladder (see 5:18);
--- Increased the strength test of the leaning ladder with side balance bar (see 5:19);
--- Increased the strength test of the leaning ladder of the strut-type balance bar (see 5:20);
--- Changed the torsion test in the length direction of the ladder (see 5:21, 5:15 of the:2012 edition);
--- Added judgment criteria (see 5:2~5:21);
--- Delete the certification requirements (see Chapter 7 of the:2012 edition);
--- Changed Appendix A (see Appendix A, Appendix A of the:2012 edition):
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed and managed by the National Machinery Safety Standardization Technical Committee (SAC/TC208):
This document is drafted by: Foshan Shunde Wanyi Household Products Co:, Ltd:, Tianjin Jinan Household Products Co:, Ltd:, Suzhou Feihua
Aluminum Industry Co:, Ltd:, Shanghai Ruiju Metal Products Co:, Ltd:, Xiamen Guomu Agricultural Technology Co:, Ltd:, Suzhou Zhongchuang Aluminum Co:, Ltd:,
Zhejiang Aopeng Industry and Trade Co:, Ltd:, Yongkang Weige Industry and Trade Co:, Ltd:, Ningbo Xingfu Tools Co:, Ltd:, Zhejiang Gaomai Industry and Trade Co:, Ltd:
Company, Ningbo Xinyiyuan Aluminum Co:, Ltd:, Shenyang Yongpan Metal Products Co:, Ltd:, Nanjing Forestry University, China Machinery Productivity Promotion Center, Shaanxi
Xiguo Hongfu Testing Technology Co:, Ltd:, Guangdong Yisheng Testing Co:, Ltd:, Quanzhou Standardization Association, Yiwu Laojin Mould Co:, Ltd:, Jiang
Sumicida Technology Co:, Ltd:, Shanghai Jianhu Instrument Equipment Co:, Ltd:
The main drafters of this document: Yan Junjun, Li Jie, Zhang Xiuzhuo, Cai Baorong, Que Caiwang, Zhou Xiaoying, Chen Zhijun, Xu Fengge, Tao Junfu, Zhou Pan,
Chen Jingjing, Chen Mingzhen, Ju Ronghua, Fu Huiqing, Xie Changhua, Li Zhong, Liang Runxi, Wang Shengjiang, Lin Hongsong, Bao Minghua, Li Qin, Zhu Bin, Cai Qiang,
Chen Jiaxing, Zhang Qun, Li Chunping, Ni Liaoyong, Duan Yanjun, Li Jiatao, Liu Zhiyong, Chen Miaoren, Zhao Linxiang, Yang Yi, Xiong Yuping, Shen Dehong, Xu Haozhi,
Cheng Hongbing, Feng Shenghui, Dong Kaibo, Song Xiaoning, Jin Qinghe, He Mingli, Zhang Xiaofei:
This document was first published as GB/T 17889:2-1999 in:1999, the first revision was in:2012, and this is the second revision:
Introduction
Ladder is a commonly used climbing safety device: GB/T 17889 aims to improve the quality and safety level of ladder-related products, guarantee
User safety consists of six parts:
--- Part 1: Terms, types and functional dimensions: Give the common terms and types of ladders, as well as those that need to be used in design and testing
Functional dimensions that affect the quality and safety level of ladders and are designed to harmonize ladder-related standards:
--- Part 2: Requirements, tests and signs: Specify requirements for factors affecting the quality and safety level of ladders, and give corresponding test methods:
Law, designed to ensure the safety level of the ladder:
--- Part 3: Instructions for use: The instructions for the use of ladders need to give information and specify requirements for the way of expression, in order to ensure the use of
The person can use the ladder correctly according to the instruction manual:
--- Part 4: Ladders with single or multiple hinges: Special requirements are specified for hinged ladders to ensure the quality and safety of hinged ladders
level:
--- Part 5: Telescopic ladders: Special requirements are specified for telescopic ladders to ensure the quality and safety level of telescopic ladders:
--- Part 6: Movable platform ladder: Special requirements are specified for movable platform ladders to ensure the quality of movable platform ladders:
quantity safety level:
Ladders part 2: requirements, tests and marking
1 Scope
This document specifies general design features, requirements and test methods for portable and mobile ladders:
This document applies to portable and mobile ladders:
This document does not apply to special purpose ladders, such as: fixed ladders, fire ladders, insulated ladders:
Note: This document is used in conjunction with GB/T 17889:1:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 228:1 Tensile Test of Metallic Materials Part 1: Test Method at Room Temperature
GB/T 1040:1 Determination of Tensile Properties of Plastics Part 1: General
GB/T 1040:2 Determination of Tensile Properties of Plastics Part 2: Test Conditions for Molded and Extruded Plastics
GB/T 1043:1 Determination of impact properties of plastic simply supported beams - Part 1: Non-instrumented impact test
GB/T 3854 Test method for Barcol hardness of reinforced plastics
GB/T 12467:1 Quality requirements for fusion welding of metallic materials Part 1: Selection criteria for corresponding grades of quality requirements
GB/T 12467:2 Quality requirements for fusion welding of metallic materials Part 2: Complete quality requirements
GB/T 12467:3 Quality requirements for fusion welding of metallic materials Part 3: General quality requirements
GB/T 12467:4 Quality requirements for fusion welding of metallic materials Part 4: Basic quality requirements
GB/T 16422:2-2014 Plastics Laboratory Light Source Exposure Test Method Part 2: Xenon Arc Lamp
GB/T 17889:1-2021 Ladder Part 1: Terms, Types and Functional Dimensions
GB/T 17889:3 Ladder Part 3: Instruction Manual
GB/T 19419 Welding Management Tasks and Responsibilities
ISO 14125 Determination of flexural properties of fiber-reinforced plastic composites (Fibre-reinforcedplasticcomposites-
Determinationofflexuralproperties)
3 Terms and Definitions
The terms and definitions defined in GB/T 17889:1-2021 and the following apply to this document:
3:1
thermosetplastic
Plastics that have been cured into a substantially insoluble, infusible state by heating or other methods, such as radiation, catalysis, etc:
[Source: GB/T 2035-2008, 2:1062]
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