GB/T 3324-2024 General technical requirements for wooden furniture
General technical requirements for wooden furniture
1 Scope
This document specifies the requirements, inspection rules, and marking, instructions for use, packaging, transportation and storage of wooden furniture, defines the terms and definitions, and provides the classification.
This document is applicable to the quality control of the design, production, sales service, and inspection and testing of wooden 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/T1043.1 Plastics - Determination of charpy impact properties - Part 1: Non-instrumented impact test
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 wearability
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 7573-2009 Textiles - Determination of pH of aqueous extract
GB/T 10357.1 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 10357.7-2013 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
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
wooden furniture
furniture made of wooden materials such as wood and wood-based panels, except for decorative parts and accessories in the main parts and components
[Source: GB/T 28202-2020, 2.2, modified]
Note: See Annex A for examples of the main components.
3.2
solid wood furniture
wood furniture with main components made of solid wood materials, with (or without) solid wood veneer or thin wood veneer on the surface, and with (or without) finishing treatment. Solid wood materials include logs, solid wood sawn timber, finger-jointed lumber, laminated timber, etc.
3.3
wood-based panel furniture
panel furniture
wood furniture with main components made of wood-based panels such as fiberboard, particleboard, sheet of plywood, blockboard and laminated lumber
3.4
solid wood and wood-based panel furniture
wooden furniture with product frame made of solid wood and the panel or the inner panel of the frame made of veneer wood-based panel
[Source: GB/T 28202-2020, 2.14, modified]
3.5
wooden furniture made of multiple materials
other wooden furniture made of all kinds of wooden materials, but not defined as solid wood furniture, panel furniture, and solid wood and wood-based panel furniture
3.6
outward appearance
outward visible appearance of product in initial state
3.7
inward appearance
visible appearance displayed by the opening of movable component such as product doors and drawers, as well as separating components such as partitions or shelves
3.8
surface decoration
decorative treatment on the surface or edge of wooden components of furniture by painting, covering and banding
Note: The painting process includes scraping, brushing, wiping, pouring, rolling, drawing, dipping, spraying, air spraying, airless spraying, electrostatic spraying and other processes.
3.9
hardware
metal component that meets the requirements of furniture design and structure, and serves as a connecting, movable, fastening, supporting, and decorative element in furniture
3.10
flexible materials
curlable and flexible, thin sheet covering material, such as polyvinyl chloride (PVC) plastic film, etc.
[Source: GB/T 28202-2020, 5.119, modified]
3.11
overlaid materials
sheet overlaid materials or high-pressure decorative panels with a certain degree of stiffness, such as veneer lumber, veneer, plastic veneer, and metal sheet
[Source: GB/T 28202-2020, 5.120, modified]
4 Classification
The main components and products of wooden furniture are classified according to Annex A.
5 Requirements
5.1 Main dimensions and their deviations
The main dimensions and their deviations shall meet those specified in Table 1.
Table 1 Main dimensions and their deviations of wooden furniture
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
5.1 Main dimensions and their deviations
5.2 Geometrical tolerance
5.3 Material requirements
5.4 Appearance requirements
5.5 Physical and chemical properties
5.6 Mechanical properties
5.7 Structural safety (basic item)
5.8 Limit of harmful substances (basic item)
5.9 Electrical safety (basic item)
5.10 Flame resistance (basic item)
6 Test methods
6.1 Main dimensions and their deviation determination
6.2 Determination of geometrical tolerance
6.3 Material determination
6.4 Appearance determination
6.5 Determination of physical and chemical properties
6.6 Mechanical property test
6.7 Structural safety
6.8 Limit of harmful substances
6.9 Electrical safety
6.10 Flame resistance
7 Inspection rules
7.1 Inspection classification
7.2 End-of-manufacturing inspection
7.3 Type inspection
7.4 Rules for judging inspection results
7.5 Re-inspection rules
8 Marking, instructions for use, packaging, transportation and storage
8.1 Marking
8.2 Instructions for use
8.3 Packaging
8.4 Transportation and storage
Annex A (Normative) Main components and product classification of wooden furniture
A.1 Main components of wooden furniture
A.2 Classification by materials used for main components of the product
A.3 Classification by surface finish of main components of the product
A.4 Classification by occasion of use of the product
Annex B (Normative) Annual average equilibrium moisture content of wood in various provinces (regions, special administrative region), municipalities and major cities in China
Annex C (Informative) Standards for wood-based panels and wood names commonly used in furniture
Bibliography
