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This standard is developed according to the rules specified in GB/T 1.1-2009.
This standard replaces GB/T 3324-2008 Wooden Furniture - General Technical Requirements and the following changes have been made with respect to GB/T 3324-2008:
——The definitions of solid wood type furniture and surface decoration are modified, and the definition of solid wood and wood-based panel type furniture is added; the definition of base material is deleted (see Chapter 3; Chapter 3 in 2008 edition);
——The product classification is modified and is included in Annex A (see Annex A; Chapter 4 in 2008 edition);
——Main dimensions of desks, cabinets, chairs and stools, and beds are modified (see 5.1; 5.1 in 2008 edition);
——Requirements of moisture content of wood-based panel are deleted, and technical requirements of identification consistency and wood-based panel are modified (see 5.3; 5.3 in 2008 edition);
——Requirements of film resistance to cigarette burn are deleted, wearability requirements of film are modified; requirements of fluid resistance of flexible and rigid overlaid surfaces are modified, requirements of surface bonding strength are deleted, requirements of surface resistance to wet heat are added; requirements of corrosion resistance of metal handle are modified (see 5.5; 5.5 in 2008 edition);
——Technical requirements of desks, cabinets, chairs and stools, and beds are modified (see 5.7; 5.7 in 2008 edition);
——Requirements and test methods for structure safety are added (see 5.8.1 and 6.8);
——Formaldehyde emission requirements and test method are modified, VOC limit requirements and test methods are added; requirements and test methods for decomposable aromatic amine in leather and textile fabric are added (see 5.8.2 and 6.9; 5.8 and 6.8 in 2008 edition);
——Annex C is added (see Annex C).
This standard was proposed by China National Light Industry Council.
This standard is under the jurisdiction of the National Technical Committee on Furniture of Standardization Administration of China (SAC/TC 480).
The previous editions of this standard are as follows:
——GB/T 3324-1995 and GB/T 3324-2008.
General Technical Requirements for Wooden Furniture
1 Scope
This standard specifies terms and definitions, classification, requirements, test methods, inspection rules, marking, use instruction, packaging, transportation and storage of wooden furniture.
This standard is applicable to the wooden furniture. The wooden parts of other furniture may also refer to the provisions of this standard.
2 Normative References
The following documents for the application of this document are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition of the normative document (including any amendments) applies.
GB/T 1931 Method for Determination of the Moisture Content of Wood
GB/T 2828.1-2012 Sampling Procedures for Inspection by Attributes - Part1: Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection
GB/T 4893.1 Furniture - Assessment of Surface Resistance to Cold Liquids
GB/T 4893.2 Furniture - Assessment of Surface Resistance to Wet Heat
GB/T 4893.3 Furniture - Assessment of Surface Resistance to Dry Heat
GB/T 4893.4-2013 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 4893.8-2013 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 10357.1-2013 Test of Mechanical Properties of Furniture - Part 1: Strength and Durability of Tables
GB/T 10357.2-2013 Test of Mechanical Properties of Furniture - Part 2: Stability of Chairs and Stools
GB/T 10357.3-2013 Test of Mechanical Properties of Furniture - Part 3: Strength and Durability of Chairs and Stools
GB/T 10357.4-2013 Test of Mechanical Properties of Furniture - Part 4 : Stability of Storage Units
GB/T 10357.5-2011 Test of Mechanical Properties of Furniture - Part 5: Strength and Durability of Storage Units
GB/T 10357.6-2013 Test of Mechanical Properties of Furniture - Part 6: Strength and Durability of Beds
GB/T 10357.7-2013 Test of Mechanical Properties of Furniture - Part 7: Stability of Tables
GB/T 10357.8-2015 Test of Mechanical Properties of Furniture - Part 8: Stability of Chairs with Tilting or Reclining Mechanisms When Fully Reclined, and Rocking Chairs.
GB/T 17592 Textiles - Determination of the Banned Azo Colourants
GB/T 17657-2013 Test Methods of Evaluating the Properties of Wood-based Panels and Surface Decorated Wood-based Panels
GB 18584 Indoor Decorating and Refurbishing Materials - Limit of Harmful Substances of Wood Based Furniture
GB/T 19942 Leather and Fur - Chemical Tests - Determination of Banned Azo Colourants
GB/T 23344 Textiles - Determination of 4-aminoazobenzene
GB/T 24430.2-2009 Bunk Beds for Domestic Use - Safety - Part 2: Test
GB/T 28202-2011 Furniture Industry Terminology
QB/T 2385 Valuable Hardwood Furniture in Deep Color
QB/T 3826 Corrosion-resistant Testing Method of the Metal Deposits and Conversion Coatings for the Light Industrial Products - Neutral Salt Spraying Test (NSS)
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 28202-2011 as well as the following apply.
3.1
wooden furniture
furniture made of wooden materials such as wood and wood-based panels, except the decorative parts and fittings in main components and parts
[GB/T 28202-2011, 2.1.1]
3.2
solid wood type furniture
wooden furniture with main parts made of solid wood material and surface (not being) veneered with wood veneer or sliced veneer and (not) subjected to finishing. The solid wood type materials include log, sawn timber, finger joint wood, glued laminated timber, etc.
3.3
wood-based panel type furniture
furniture with main parts made of wood-based panels (including element board and surface decorated wood-based panels) such as fiberboard, particle board, plywood, blockboard and laminated veneer lumber
Note: It is revised from the definition of 2.1.1.2 in GB/T 28202-2011.
3.4
solid wood and wood-based panel type furniture
wooden furniture with product frame made of solid wood, and board or board surface in frame made of surface decorated wood-based panels
Note: It is revised from the definition 2.1.1.3 of GB/T 28202-2011.
3.5
wooden furniture made of multiple material
other wooden furniture made of various wooden materials and cannot be defined as solid wood type furniture, panel furniture, or solid wood and wood-based panel type furniture
Note: It is revised from the definition of 2.1.1.3 in GB/T 28202-2011.
3.6
outward appearance
external visible surface of product in initial condition
3.7
vertical degree of adjoining side
nonrectangular degree when the product (component) is rectangular
3.8
inward appearance
visible surface shown by such as partition components such clapboard or shelf board of product after movable components such as door and drawer are opened
3.9
surface decoration
decoration treatment on the wood component surface of furniture by veneering, finishing, waxing and flexible and rigid overlaid surfaces
Note: It is revised from the definition of 2.5.5.12 in GB/T 28202-2011.
3.10
hardware
metal part meeting the requirements of model and structural requirements of furniture, and having the functions of connection, movement, fastening, supporting and decorative lamp
[GB/T 28202-2011, 2.4.15]
4 Product Classification
See Annex A.
5 Requirements
5.1 Main dimensions and deviation
The main dimensions and deviation of wooden furniture shall meet those specified in Table 1.
Table 1 Main Dimensions and Deviation of Wooden Furniture In: mm
No. Inspection item Requirement Item classification
Basic General
1 Main dimensions of desks Desktop height: 680~760 √
2 Center clear width: ≥520 √
3 Center clear height: ≥580 √
4 Fitting height difference between center clear height and chair/stool seat surface: ≥200 √
5 Height difference of auxiliary table and chair (stool) products:250~320 √
6 Main dimensions of chairs and stools Seat height: 400~440 in case of rigid surface; 400~460 in case of flexible surface (including sinkage) √
7 Inner width between armrests of armchair: ≥480 √
8 Main dimensions of cabinets Wardrobe Distance between top edge of clothes rail and internal surface of base board ≥1,400 for long clothes √
9 ≥900 for short clothes √
10 Depth of clothes hanging space: ≥530 (the measuring direction shall be perpendicular to clothes rail) √
11 Depth of placing space for folded clothes: ≥450 √
12 Distance between top edge of clothes rail and internal surface of top board: ≥40
13 File cabinet Clear depth: ≥245 √
14 Inter-layer clear height: ≥330 √
15 Main dimensions of beds Single-layer bed Length of bed base: 1,900~2,220 √
16 Width of bed base: 700~1,200 for single bed and 1,350~2,000 for double bed √
17 Height of bed base (without mattress (bedding)): ≤450 √
18 Bunk bed Length of bed base: 1,900~2,020 √
19 Width of bed base: 800~1,520 √
20 Height of bed base (without mattress (bedding)): ≤450 √
21 Inter-layer clear height: with mattress (bedding) ≥1,150, without mattress (bedding) ≥980 √
22 Notch length of safety barrier≤600 √
23 Height of safety barrier: with mattress (bedding), the distance between top surface of bedding and top edge of safety barrier shall be ≥200; without mattress (bedding), the distance between top edge of safety barrier and top surface of bed base shall be ≥300 √
24 A permanent mark line of the maximum bedding thickness shall be marked at the corresponding position on bed to show the maximum height of top surface of bedding √
25 The ladder interruption length of safety barrier long side of bunk bed: 300-400 in the case of the beds for children under 6 years old (including 6 years old); while 500-600 in the case of the beds for adults √
26 Dimensional deviation All dimensional deviation is ±5 √
27 Overall dimension deviation of product The limit deviation of the overall dimension (width, depth and height) of products is ±5 and a positive or negative value shall be taken for that of auxiliary or combined products. √
The special specification and dimension will be agreed by the supplier and the purchaser and shall be clearly expressed in the contract.
Each item of dimensional deviation is a non-conformance item.
5.2 Shape and position tolerances
See Table 2 for shape and position tolerances.
Foreword II
1 Scope
2 Normative References
3 Terms and Definitions
4 Product Classification
5 Requirements
6 Test Methods
7 Inspection Rules
8 Marking, Use Instruction, Packaging, Storage and Transportation
Annex A (Normative) Classification and Main Components of Wooden Furniture
Annex B (Normative) Annual Average Equilibrium Moisture Content of Wood in Provinces (Regions), Municipalities and Main Cities of China
Annex C (Informative) Standards of Wood-based Panel Commonly Used for Furniture
