Detail of GB/T 3325-2024

Introduction of GB/T 3325-2024

General technical requirements for metal furniture 1 Scope This document specifies the classification, requirements, inspection rules, marking, instructions for use, packaging, storage and transport of metal furniture, and describes the corresponding test methods. This document is applicable to the quality control of the design, production, sales service, inspection and testing of metal furniture. 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions 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. GB/T 250 Textiles - Tests for colour fastness - Grey scale for assessing change in colour GB/T 1043.1 Plastics - Determination of charpy impact properties - Part 1: Non-instrumented impact test GB/T 1732-2020 Determination of impact resistance of coating films GB/T 1927.4-2021 Test methods for physical and mechanical properties of small clear wood specimens - Part 4: Determination of moisture content GB/T 2828.1-2012 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 3920-2008 Textiles - Tests for colour fastness - Colour fastness to rubbing GB/T 4893.1-2021 Test of surface coatings of furniture - Part 1: Determination of surface resistance to cold liquids GB/T 4893.2-2020 Test of surface coatings of furniture - Part 2: Determination of surface resistance to wet heat GB/T 4893.3-2020 Test of surface coatings of furniture - Part 3: Determination of resistance to dry heat GB/T 4893.4-2023 Test of surface coatings of furniture - Part 4: Determination of adhesion - Cross cut GB/T 4893.7-2013 Test of surface coatings of furniture - Part 7: Determination of surface resistance to alternation of heat and cold GB/T 4893.8-2023 Test of surface coatings of furniture - Part 8: Determination of resistance to abrasion GB/T 4893.9-2013 Test of surface coatings of furniture - Part 9: Determination of resistance to impact GB/T 5296.6 Instructions for use of products of consumer interest - Part 6: Furniture GB/T 6669-2008 Flexible cellular polymeric materials - Determination of compression set GB/T 6739-2022 Paints and varnishes - Determination of film hardness by pencil test GB/T 7573-2009 Textiles - Determination of pH of aqueous extract GB/T 9286-2021 Paints and varnishes - Cross-cut test GB/T 10357.1-2024 Test of mechanical properties of furniture - Part 1: Strength and durability of tables GB/T 10357.2 Test of mechanical properties of furniture - Part 2: Stability of chairs and stools GB/T 10357.3 Test of mechanical properties of furniture - Part 3: Strength and durability of chairs and stools GB/T 10357.4-2023 Test of mechanical properties of furniture - Part 4: Stability of storage units GB/T 10357.5-2023 Test of mechanical properties of furniture - Part 5: Strength and durability of storage units GB/T 10357.7 Test of mechanical properties of furniture - Part 7: Stability of tables GB/T 10357.8 Test of mechanical properties of furniture - Part 8: of chairs with tilting or reclining mechanisms when fully reclined, and rocking chairs GB/T 16422.2-2022 Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc sources GB/T 17657-2022 Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels GB 17927-2024 Safety technical specification of flame resistance for furniture GB 18584-2024 Limit of harmful substances of furniture GB/T 24430-2023 Test method for bunk bed structure safety GB 28007-2024 Technical specifications for the safety of infants' and children's furniture GB 28008-2024 Technical specification for the safety of furniture structure GB/T 28202-2020 Furniture industry terminology GB/T 32446-2024 General technical requirements for glass furniture GB/T 39452-2020 Leather - Physical and mechanical tests - Tests for adhesion of finish GB/T 40920-2021 Leather - Tests for colour fastness - Colour fastness to to-and-fro rubbing GB/T 41650-2022 Furniture - Beds - Test methods for the determination of stability, strength and durability GB/T 43002-2023 Children's furniture - Quality inspection and quality judgment GB 44246-2024 Household and similar electrical appliances, electrical parts of sporting goods and electric toys - Safety technical specification JC/T 908-2013 Artificial stone QB/T 1950-2024 Determination of resistance to salt water of furniture surface coatings QB/T 2724-2018 Leather - Chemical tests - Determination of pH QB/T 3826-1999 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products - Neutral salt spraying test (NSS) QB/T 4467 Tea table QB/T 5660-2021 Test method for yellowing resistance of wooden furniture surface 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 28202-2020 and the following apply. 3.1 metal furniture furniture entirely made of metal materials; or furniture with a main structure primarily composed of metal tubes, sheets, and other metal profiles, supplemented with parts and components made of wood, wood-based panel, leather, textile fabric, plastic, glass, stone, and other auxiliary materials [Source: GB/T 28202-2020, 2.15, modified] 3.2 vertical degree of adjoining side degree of deviation from rectangularity when the product or component is rectangular [Source: GB/T 28202-2020, 10.8] 3.3 plane deviation degree of parallelism between the planes expected to be horizontal in the product and the level ground [Source: GB/T 28202-2020, 10.12] 3.4 level degree local flatness of the product or component surface within the range of 0–150 mm [Source: GB/T 28202-2020, 10.6]

Contents of GB/T 3325-2024

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification 5 Requirements 5.1 Main dimensions and deviations 5.2 Geometrical tolerances 5.3 Appearance performance 5.4 Safety performance 5.5 Physical and chemical performance 5.6 Mechanical performance 6 Test methods 6.1 Measurement of main dimensions and deviations 6.2 Measurement of geometric tolerances 6.3 Appearance performance determination 6.4 Safety performance determination 6.5 Determination of physical and chemical performance 6.6 Determination of mechanical performance 7 Inspection rules 7.1 Inspection classification 7.2 End-of-manufacturing inspection 7.3 Type inspection 8 Marking, instructions for use, packaging, storage and transport 8.1 Marking 8.2 Instructions for use 8.3 Packaging 8.4 Storage 8.5 Transport Annex A (Normative) Annual average equilibrium moisture content of wood in various provinces (regions, special administrative region), municipalities and major cities in China Annex B (Informative) Commonly used wood-based panels for furniture Bibliography