GB/T 28478-2024 English PDF

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GB/T 28478-2024: Outdoor furniture - General technical requirements for tables and chairs
Status: Valid

GB/T 28478: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28478-2024	1339	Add to Cart	8 days	Outdoor furniture - General technical requirements for tables and chairs	Valid
GB 28478-2012	1879	Add to Cart	7 days	General safety requirements of outdoor leisure furniture -- Seating and tables	Obsolete

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Basic data

Standard ID: GB/T 28478-2024 (GB/T28478-2024)
Description (Translated English): Outdoor furniture - General technical requirements for tables and chairs
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y81
Classification of International Standard: 97.140
Word Count Estimation: 66,672
Date of Issue: 2024-06-29
Date of Implementation: 2025-01-01
Older Standard (superseded by this standard): GB 28478-2012
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 28478-2024: Outdoor furniture - General technical requirements for tables and chairs

---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.
ICS 97.140 CCSY81 National Standards of People's Republic of China Replaces GB 28478-2012 General technical requirements for outdoor furniture tables and chairs Released on 2024-06-29 2025-01-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface V 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Requirement 2 5 Test methods 4 6 Inspection rules 13 7 Labeling, instructions for use, packaging, transportation and storage 14 Appendix A (Normative) Strength and durability test methods for chairs (stools) 16 Appendix B (Normative) Stability test method for chair (stool) products 35 Appendix C (Normative) Mechanical properties test of table products 47 Figure 1 Schematic diagram of a reclining chair 2 Figure 2 Schematic diagram of seat surface loading pad 6 Figure 3 Seat loading pad shape --- machining 7 Figure 4 Seat loading pad shape --- injection molding 8 Figure 5 Schematic diagram of handrail fatigue test 9 Figure 6 Schematic diagram of handrail loading device 10 Figure 7 Schematic diagram of the support device 10 Figure 8 Stability loading pad example 11 Figure 9 Overall schematic diagram of the stability loading device 12 Figure 10 Schematic diagram of forward and side loading fixture 12 Figure 11.Illustration of a movable recliner that cannot be moved when loaded 15 Figure A.1 Determination of the loading points of the seat surface and the backrest 17 Figure A.2 Schematic diagram of static loads on seat surface and backrest 20 Figure A.3 Schematic diagram of additional static loads on seat surface and leg rest 21 Figure A.4 Schematic diagram of the durability of reclining chair seat and backrest 22 Figure A.5 Diagram of additional durability of seat surface 23 Figure A.6 Schematic diagram of vertical downward static load of handrail 25 Figure A.7 Schematic diagram of reclining chair impact 27 Figure A.8 Schematic diagram of the movable reclining chair lifting test 28 Figure A.9 Schematic diagram of the forward static load test on chair legs 32 Figure A.10 Schematic diagram of the lateral static load test on chair legs 33 Figure A.11 Schematic diagram of seat surface impact test 34 Figure B.1 Schematic diagram of forward tipping test 36 Figure B.2 Schematic diagram of lateral rollover test 37 Figure B.3 Schematic diagram of backward tipping test 38 Figure B.4 Test example of reclining chair with leg rest 39 Figure B.5 X and Z values 40 Figure B.6 Loading point of a rigid chair (stool) with a large front radius 42 Figure B.7 Schematic diagram of chair (stool) forward tipping test 43 Figure B.8 Schematic diagram of the rollover test of a chair (stool) without armrests 44 Figure B.9 Schematic diagram of the rollover test of a chair (stool) with armrests 45 Figure B.10 Schematic diagram of backward tipping test 46 Figure C.1 Schematic diagram of vertical static load test on main tabletop 47 Figure C.2 Schematic diagram of additional vertical static load test 48 Figure C.3 Schematic diagram of vertical static load test on auxiliary tabletop 49 Figure C.4 Schematic diagram of horizontal durability test 50 Figure C.5 Determination of vertical stability load 54 Figure C.6 Schematic diagram of vertical stability test 55 Figure C.7 Schematic diagram of stability test for tables with parasol support function 56 Table 1 Mechanical properties of reclining chair 3 Table 2 Mechanical properties of other chairs (stools) 3 Table 3 Mechanical properties of tables 4 Table 4 Factory inspection sampling plan 13 Table A.1 Static load test parameters for seat surface and backrest 18 Table A.2 Determination of seat surface and seat back loading force 19 Table A.3 Additional static load test parameters for seat surface and leg rest 20 Table A.4 Seat and back durability test parameters 21 Table A.5 Seat surface additional durability test parameters 23 Table A.6 Seat back mechanism durability test parameters 24 Table A.7 Handrail vertical downward static load test parameters 25 Table A.8 Handrail durability test parameters 26 Table A.9 Seat surface impact test parameters 26 Table A.10 Movable reclining chair lifting test parameters 28 Table A.11 Static load test parameters for seat surface and backrest 29 Table A.12 Static load test parameters for the front edge of the seat surface 29 Table A.13 Seat and backrest durability test parameters 30 Table A.14 Durability test parameters for chair backs with adjustable backs 30 Table A.15 Handrail static load test parameters 30 Table A.16 Handrail durability test parameters 31 Table A.17 Chair leg forward static load test parameters 31 Table A.18 Chair leg lateral static load test parameters 32 Table A.19 Seat surface impact test parameters 33 Table A.20 Static load test parameters for footrest crossbar 34 Table B.1 Location of the various parts of the recliner 35 Table B.2 Recliner test parameters 35 Table B.3 Values of X and Z 39 Table B.4 Position of each part of chair (stool) during test 41 Table B.5 Test parameters for non-reclining chairs 41 Table C.1 Main tabletop vertical static load test parameters 47 Table C.2 Additional vertical static load test parameters 48 Table C.3 Auxiliary table vertical static load test parameters 49 Table C.4 Horizontal durability test parameters 49 Table C.5 Vertical loading stability test parameters 53 Table C.6 Determination of vertical load 54 Table C.7 Push-pull member loading stability test parameters 55 Table C.8 Stability test parameters for tables with parasol support function 56

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 for standardization documents" Drafting. This document replaces GB 28478-2012 "Safety performance requirements for outdoor leisure furniture - Tables and chairs" and is consistent with GB 28478-2012. In addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The scope has been changed (see Chapter 1, Chapter 1 of the.2012 edition); b) Deleted the terms and definitions of “parts accessible during use” (see 3.1 of the.2012 edition), “automatic locking mechanism” (see 2012 edition 3.2), “Shear and crush points” (see.2012 edition 3.3), “Commercial outdoor leisure furniture” (see.2012 edition 3.4 of the.2012 edition), “household outdoor leisure furniture” (see 3.5 of the.2012 edition), “outdoor leisure furniture for camping” (see 3.6), “stool” (see 3.7 of the.2012 edition), “chair with adjustable back” (see 3.8 of the.2012 edition), “bench” (see 3.9), “removable reclining chairs” (see 3.11 of the.2012 edition), “footstools” (see 3.12 of the.2012 edition), “footrests” (see 3.13 of the.2012 edition), 3.13 of the year); c) Changed the term "reclining chair" in the terms and definitions (see 3.1, 3.10 of the.2012 edition); d) The appearance performance requirements have been changed (see 4.1, 6.1 and 6.2 of the.2012 edition); e) The product structure requirements have been changed (see 4.2, 6.1 and 6.2 of the.2012 edition); f) The shear and extrusion point requirements have been deleted (see 6.1.3 and Appendix A of the.2012 edition); g) Changed the requirements for hazardous substances in products (see 4.3, 6.1 and 6.2 of the.2012 edition); h) The physical and chemical performance requirements have been changed (see 4.4, 6.1 and 6.2 of the.2012 edition); i) The mechanical property requirements for chairs (stools) have been changed (see 4.5.1, 6.3, 6.4 and Appendix B of the.2012 edition); j) Changed the mechanical performance requirements for tables (see 4.5.2, 6.5 of the.2012 edition); k) The appearance performance test method has been changed (see 5.1, 7.1 to 7.6 of the.2012 edition); l) The product structure test method has been changed (see 5.2, 7.1 to 7.6 of the.2012 edition); m) The test method for hazardous substances in products has been changed (see 5.3, 7.1 to 7.6 of the.2012 edition); n) The test methods for physical and chemical properties have been changed (see 5.4, 7.1 to 7.6 of the.2012 edition); o) The general test conditions have been changed (see 5.5.1, Chapter 4 of the.2012 edition); p) The test rod has been deleted (see 5.1 of the.2012 edition); q) Changed the ground (see 5.5.2.2, 5.3 of the.2012 edition), loading positioning template (see 5.5.2.3, 5.4 of the.2012 edition), seat surface reinforcement Loading pads (see 5.5.2.4, 5.5 of the.2012 edition), small seat loading pads (see 5.5.2.5, 5.6 of the.2012 edition), seat back loading pads (see 5.5.2.6, 5.7 of the.2012 edition), local loading pads (see 5.5.2.7, 5.8 of the.2012 edition), foam pads (see 5.5.2.8, 5.9 of the.2012 edition), seat impactor (see 5.5.2.9, 5.12 of the.2012 edition), armrest durability test device (see 5.5.2.10, 5.13 of the.2012 edition), loading plate (see 5.5.2.11, 5.14 of the.2012 edition), test steel pipe (see 5.5.2.13, 5.16 of the.2012 edition), stopper (see 5.5.2.14, 5.17 of the.2012 edition); r) Deleted the double seat loading pad (see 5.10 of the.2012 edition) and double seat back loading pad (see 5.11 of the.2012 edition); s) Added stability loading pad (see 5.5.2.15) and stability loading device (see 5.5.2.16); t) Changed the test method for mechanical properties of chairs (stools) (see 5.5.3, Appendix A, Appendix B,.2012 edition 7.7, Appendix B, Appendix Appendix C, Appendix D); u) The test method for mechanical properties of table products has been changed (see 5.5.4, Appendix C, 7.8 of the.2012 edition); v) Added inspection rules (see Chapter 6); w) The marking, instructions for use, packaging, transportation and storage have been changed (see Chapter 7, Chapter 9 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 by China Light Industry Federation. This document is under the jurisdiction of the National Furniture Standardization Technical Committee (SAC/TC480). This document was drafted by. Zhejiang Light Industrial Products Quality Inspection Institute, Shanghai Quality Supervision and Inspection Technology Research Institute, Zhejiang Yongqiang Group Group Co., Ltd., Zhejiang Linya Co., Ltd., Foshan Shunde District Hangao Furniture Products Co., Ltd., Jinhua Xineng Folding Table Manufacturing Co., Ltd. Co., Ltd., Ningbo Yixiang Blow Molding Furniture Co., Ltd., Linhai Metrology Verification and Testing Institute, Huizhou Chengye Furniture Co., Ltd., Guangdong Products Quality Supervision and Inspection Institute, Zhejiang Tianlong Tourism Products Co., Ltd., Beijing Product Quality Supervision and Inspection Institute, Hangzhou Haiweite Chemical Technology Co., Ltd., Zhejiang Tapson Industrial Group Co., Ltd., Yuyao Xinchao Furniture Co., Ltd., Zhejiang Yongxin Testing Technology Co., Ltd., Foshan Shunde Meiyaxin Furniture Industry Co., Ltd., Quanyou Furniture Co., Ltd., Zhejiang Shengxue Leisure Products Co., Ltd., Shengji Home Furnishings Co., Ltd. Product Development (Jiashan) Co., Ltd., Guangdong Bogao Sanitary Ware Co., Ltd. The main drafters of this document are. Zhong Wenhan, Luo Jufen, Chen Xixi, Luo Ligang, Wang Jin, Wang Dingke, Zhao Niangao, Sun Guohua, Jiang Jinglei, He Weilong, Hu Guoqian, Cao Zuolin, Wang Hongqiang, Hu Gairui, Sun Shudong, Shen Haiqi, Lin Jianjun, Yang Baoqing, Zheng Jianbo, Wang Xiaoyan, Xiong Feng, Zhang Youquan, Zhu Xiaohui, Zhu Yunzhi, Chen Weizhong, and Shi Yacheng. The previous versions of this document and the documents it replaces are as follows. ---First published in.2012 as GB 28478-2012; ---This is the first revision. General technical requirements for outdoor furniture tables and chairs

1 Scope

This document specifies the technical requirements, inspection rules, marking, use, and use of camping, household and commercial outdoor tables (tables), chairs (stools) for adults. Instructions for use, packaging, transportation and storage, and the corresponding test methods are described. This document applies to quality control during the design, production, installation and sales of outdoor tables and chairs for adults. This document does not apply to the material design/structure or manufacturing process of outdoor tables and chairs, electrical safety, castors, tilt mechanisms and seat height. The durability of the adjustment mechanism does not apply to removable upholstered parts and coverings and permanently fixed furniture.

2 Normative references

The 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 to This document. GB/T 250 Textiles - Grey scale for colour fastness tests GB/T 2828.1-2012 Sampling procedures for inspection by attributes Part 1.Sampling for batch inspection based on acceptance quality limit (AQL) plan GB/T 3325-2017 General technical requirements for metal furniture GB/T 3922-2013 Textiles - Tests for colour fastness - Colour fastness to perspiration GB/T 8427-2019 Textiles - Tests for colour fastness - Colour fastness to artificial light. Xenon arc fading GB/T 10357.1-2013 Furniture mechanical properties test Part 1.Strength and durability of tables GB/T 10357.3-2013 Mechanical properties test of furniture Part 3.Strength and durability of chairs and stools GB/T 16422.2-2022 Plastics laboratory light source exposure test method Part 2.Xenon arc lamp GB/T 28202 Furniture Industry Terminology GB/T 31106 Determination of volatile organic compounds in furniture GB 28008-2024 Technical specification for furniture structure safety GB 18584-2024 Limits of Hazardous Substances in Furniture QB/T 3826 Test method for corrosion resistance of metal coatings and chemical treatment layers of light industrial products Neutral salt spray test (NSS) method

3 Terms and definitions

The terms and definitions defined in GB/T 28202 and GB/T 31106 and the following apply to this document. 3.1 lounger Lying in bed Chairs with a backrest tilt angle ranging from 0° to 90°, a legrest integrated into the product as a whole, and a design that can fully bear the weight of the user products (see Figure 1). ......

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