GB/T 17889.4-2024 English PDFUS$479.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 17889.4-2024: Ladders - Part 4: Hinged ladders Status: Valid GB/T 17889.4: Historical versions
Basic dataStandard ID: GB/T 17889.4-2024 (GB/T17889.4-2024)Description (Translated English): Ladders - Part 4: Hinged ladders Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J09 Classification of International Standard: 13.110 Word Count Estimation: 24,286 Date of Issue: 2024-08-23 Date of Implementation: 2024-08-23 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 17889.4-2024: Ladders - Part 4: Hinged ladders---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 4.Hinged ladders Ladders Part 4.Hinged Ladders ICS 13.110 CCS J 09 National Standard of the People's Republic of China Replaces GB/T 17889.4-2012 Released on 2024-08-23 2024-08-23 implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface ... Ⅲ Introduction ... V 1 Scope ... 1 2 Normative references ... 1 3 Terms and Definitions ... 1 4 Functional dimensions ... 4 4.1 General requirements... 4 4.2 Hinged ladders used as leaning ladders or free-standing ladders 5 4.3 Multi-hinged ladder used as a platform 5 4.4 Multi-hinged ladder used as support 6 5 Requirements ... 7 5.1 General requirements 7 5.2 Tabletop parts ... 7 6 Test methods ... 7 6.1 General requirements 7 6.2 Hinged ladder strength test 7 6.3 Additional strength test for multi-hinged ladders 8 6.4 Hinge cycle test 9 6.5 Tests on hinged ladders used as platforms 9 7 Usage Information ... 11 7.1 General requirements 11 7.2 Logo ... 11 7.3 User Manual ... 11 Appendix A (Normative) Test sequence for hinged ladders 13 References ... 15ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is Part 4 of GB/T 17889 "Ladder". GB/T 17889 has published the following parts. Part 1.Terminology, type and functional dimensions; - Part 2.Requirements, tests and marking; - Section 3.Usage Information;- Part 4.Hinged ladders;- Part 5.Telescopic ladders;- Part 6.Portable platform ladders. - This document replaces GB/T 17889.4-2012 "Ladders Part 4.Ladders with single or multiple hinges" and is in accordance with Compared with GB/T 17889.4-2012, in addition to structural adjustments and editorial changes, the main technical changes are as follows. The term “longitudinally hinged ladder” was changed to “hinged ladder” and the definition was changed (see 3.1 of the.2012 edition); - The term "ladder with a lockable hinge joint" was changed to "double-hinged ladder" and examples were added (see 3.1.1, 3.1.1 of the.2012 edition); The term "ladder with multiple lockable hinged joints" was changed to "multi-hinge ladder" and examples were added (see 3.1.2, 3.1.2 of the.2012 edition); The term “laterally hinged ladder” and its definition (see 3.2 of the.2012 edition) have been deleted; - The general requirements for functional dimensions have been changed (see 4.1, 4.1 of the.2012 edition); - The requirements for longitudinally hinged ladders (see 5.3 of the.2012 edition) have been deleted; - The general test method has been changed (see 6.1, 6.1 of the.2012 edition); - The strength test method for hinged ladders has been changed, and ladders are divided into professional ladders and household ladders (see 6.2, 6.2 of the.2012 edition); - An additional strength test for multi-hinged ladders has been added (see 6.3); - The strength test of the deck plate has been changed (see 6.5.2, 6.2.4.2 of the.2012 edition); - Added strength test for hinged ladders and their platform components when used as platforms (see 6.5.3); - The ladder safety test (see 6.2.4.3 of the.2012 edition) has been deleted; - The test for transverse hinged ladders has been deleted (see 6.3 of the.2012 edition); - Changed the requirements for instructions for use (see Chapter 7, Chapter 8 of the.2012 edition); - The test sequence for transversely hinged ladders has been deleted (see Table A.2 of the.2012 edition). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed and coordinated by the National Technical Committee for Machinery Safety Standardization (SAC/TC 208). This document was drafted by. Tianjin Jinmao Group Co., Ltd., Zhejiang Aopeng Industry and Trade Co., Ltd., Suzhou Feihua Aluminum Industry Co., Ltd. Company, Suzhou Zhongchuang Aluminum Co., Ltd., Foshan Shunde Wanyi Home Furnishing Co., Ltd., Shanghai Ruiju Metal Products Co., Ltd., Ningbo Xingfu Tools Co., Ltd., Guangdong Qunwang Technology Co., Ltd., Shenyang Yongpan Metal Products Co., Ltd., Zhejiang Maier Tools Co., Ltd. Company, Lantu Automobile Technology Co., Ltd., China State Shipbuilding Corporation No. 703 Research Institute, Sichuan Shuxing Youchuang Safety Technology Co., Ltd. Co., Ltd., China Machinery Research Institute of Standards and Technology (Beijing) Co., Ltd., Yiwu Kayi Mould Co., Ltd., China Machinery Productivity Promotion Center Co., Ltd. company. The main drafters of this document are. Li Jie, Dong Kaibo, Zhang Xiuzhuo, Zhou Xiaoying, Cai Qiang, Cai Baorong, Tao Junfu, Zhang Zhao, Chen Mingzhen, Chen Guoliang, Qin Peijun, Chen Miaoren, Wu Qu, Pang Xuejia, Lv Rongjun, Cai Xuyong, Bao Minghua, Zhang Qun, Tian Shaozhuang, He Jianping, Jiang Jinghua, Xiong Yuping, Lan Xupo, Fu Huiqing, Yang Yi, Chen Jiaxing, Yan Lujun, Li Fengming, Liu Zhiyong, Li Qin, Xu Haozhi, Zhang Yan, Jia Shuxu, Cheng Hongbing, Wang Shengjiang, Wang Jing, Zhang Xiaofei. This document was first published in.2012 and this is the first revision.IntroductionLadders are a commonly used safety facility for climbing heights. GB/T 17889 aims to improve the quality and safety level of ladder-related products and ensure that they are used safely and securely. User safety is planned to consist of 6 parts. Part 1.Terminology, types and functional dimensions. The purpose is to coordinate the standards related to ladders and provide common terms, types and functional dimensions of ladders. The functional dimensions that affect the quality and safety level of the ladder, as well as the design and testing required. Part 2.Requirements, tests and marking. The purpose is to ensure the safety level of ladders and to identify factors that affect the quality and safety level of ladders. The requirements for elements are specified and corresponding test methods are given. Part 3.Usage information. The purpose is to ensure that users can use the ladder correctly according to the signs and instructions and to The requirements for labels that serve as warnings during the use of the product, as well as the information and expression methods that need to be given in the instructions. Part 4.Hinged ladders. The purpose is to ensure the quality and safety level of hinged ladders and to specify special requirements for hinged ladders. Part 5.Telescopic ladders. The purpose is to ensure the quality and safety level of telescopic ladders and to specify special requirements for telescopic ladders. Part 6.Portable platform ladders. Special requirements are set for portable platform ladders to ensure that portable platform ladders quality and safety level. Ladders Part 4.Hinged Ladders1 ScopeThis document specifies the functional dimensions, requirements, test methods and information for use of hinged ladders. This document applies to hinged ladders that can achieve multiple functions such as leaning on and self-supporting. This document does not apply to combination ladders and free-standing ladders with articulated joints as specified in GB/T 17889.1. Note. This document is used in conjunction with GB/T 17889.1, GB/T 17889.2 and GB/T 17889.3.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies. in this document. GB/T 17889.1-2021 Ladders Part 1.Terminology, types and functional dimensions GB/T 17889.2-2021 Ladders Part 2.Requirements, tests and marking GB/T 17889.3 Ladders Part 3.Usage Information3 Terms and definitionsThe terms and definitions defined in GB/T 17889.1-2021 and the following apply to this document. 3.1 hinged ladder joint ladder A ladder that can achieve multiple functions by automatically or manually folding the hinges on the ladder frame. [Source. GB/T 17889.1-2021, 3.1.3, modified] 3.1.1 Hinged ladder with two hinge-joints A hinged ladder is a ladder that has only a pair of hinges in the middle of the ladder frames on both sides, and the hinges have at least one predetermined lockable position. Note 1.This also includes double-hinged ladders with extendable ladder frames at both ends. Note 2.Examples of double-hinged ladders and their functions are shown in Figures 1 and 2. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 17889.4-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 17889.4-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 17889.4-2024_English with my colleagues?Answer: Yes. 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