Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed according to the rules specified in GB/T 1.1-2009.
This standard replaces GB/T 3325-2008 Metal Furniture - General Technical Requirements and the following changes have been made with respect to GB/T 3325-2008:
——The scope is modified, and the inapplicable scope of this standard is defined (see Chapter 1; Chapter 1 in 2008 edition);
——Parts of normative references are modified;
——Terms and definitions given in GB/T 28202-2011 are added; and the terms "edge banding of wood-based panel" and "interface" and their definitions are added (see 3.7; 3.8 in 2008 edition);
——Provisions of "Chapter 4 Classification" are added (see Chapter 4);
——The dimensional requirements of book cabinet (file cabinet) are modified, the dimensional requirements of cabinet base board are added; and the dimensional requirements of bunk bed are modified (see 5.1; 4.1.1 in 2008 edition);
——The requirement and test method for depth of drawer are deleted (see 4.2 and 5.3.10 in 2008 edition);
——The height requirements of crator ripple on welded parts and those of wrinkle at the bend of circular tube and flat tube are deleted, the requirements for flexible and rigid covering parts are modified and changed to flexible covering parts and plastic parts, and the requirements for glass parts are modified (see 5.3; 4.3 in 2008 edition);
——The structure of this standard is modified, the contents of other requirements are reclassified according to the principle of standardized performance and included in the parts of appearance performance, physical and chemical performance, and safety performance respectively (see 5.3, 5.4 and 5.5; 4.4 in 2008 edition);
——Safety performance is modified and divided into structure safety, limit of harmful substances and combustion safety. Anti-drop requirements for push-and-pull members, clearance requirements for holes and anti-sliding requirements for vertically-sliding components are added, and requirements and test methods for volatile harmful substances are modified (see 5.4; 4.5 in 2008 edition);
——Glossiness requirements for coating on metal parts are deleted, requirements for resistance to cigarette burn of film coating are deleted, and wearability requirements for film are modified; requirements for pH value and color fastness of overlaid materials (textile fabric and leather) are added, and requirements for physical and chemical performance of glass and plastic parts are modified (see 5.5.1; 4.6.1 in 2008 edition);
——Technical requirements of desks, cabinets, chairs and stools are modified, and requirements and test methods for bunk bed are added (see 5.6; 4.7 in 2008 edition);
——The description language for accuracy is modified, and the test methods such as hole clearance and automatic folding are add (see 6.4.1);
——The requirements for calculation of acceptance coefficient are deleted (see 7.4 in 2008 edition).
Attention is drawn to the possibility that some of the elements of this standard may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
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 3325-1995, GB/T 3325-2008.
General Technical Requirements for Metal Furniture
1 Scope
This standard specifies terms and definitions, classification, requirements, test methods, inspection procedures, inspection rules, marking, use instruction, packaging, transportation and storage of metal furniture.
This standard is applicable to the metal furniture product with the major structure made of metal. Other furniture containing metal member 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 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 Determination of Impact Resistance of Film
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 3920 Textiles - Tests for Colour Fastness - Colour Fastness to Rubbing
GB/T 4689.20 Leather - Determination for Adhesion of Finish
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 Test of Surface Coatings of Furniture - Part 4: Determination of Adhesion - Cross Cut
GB/T 4893.7 Test of Surface Coatings of Furniture - Part 7: Determination of Surface Resistance to Alternation of Heat and Cold
GB/T 4893.8 Test of Surface Coatings of Furniture - Part 8: Determination of Wearability
GB/T 4893.9 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 Paints and Varnishes - Determination of Film Hardness by Pencil Test
GB/T 7573 Textiles - Determination of pH of the Aqueous Extract
GB/T 9286 Paints and Varnishes - Cross Cut Test for Films
GB/T 10357 (all parts) Test of Mechanical Properties of Furniture
GB/T 13667.1-2015 Steel Bookshelves - Part 1: Bookshelf of Single Column and Multi-column
GB/T 16422.2 Plastics - Methods of the Exposure to Laboratory Light Sources - Part 2: Xenon-arc Sources
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 18580 Indoor Decorating and Refurbishing Materials - Limit of Formaldehyde Emission of Woodbased Panels and Finishing Products
GB 18584 Indoor Decorating and Refurbishing Materials - Limit of Harmful Substances of Wood Based Furniture
CB/T 19942 Leather and Fur - Chemical Tests - Determination of Banned Azo Colourants
GB 24430.1-2009 Bunk Beds for Domestic Use - Safety - Part 1: Requirements
GB/T 24430.2-2009 Bunk Beds for Domestic Use - Safety - Part 2: Test
GB 28008-2011 Safety Requirements of Glass Furniture
GB/T 28202-2011 Furniture Industry Terminology
QB/T 1951.2-2013 Metal furniture - Quality Test and Evaluation
QB/T 2537 Leather - Tests for Colour Fastness - Colour Fastness to Reciprocating Rubbing
QB/T 2724 Leather - Chemical Test - Determination of ph
QB/T 3826 Corrosion-resistant Testing Method of the Metal Deposits and Conversion Coatings for the Light Industrial Products - Neutral Salt Spraying Test (NSS)
QB/T 4156-2010 Office Furniture - Microcomputer Desk
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
metal furniture
the furniture assembled from the frame or member mainly composed of metal tube, metal plate and other metal sections and the parts fabricated with wood, wood-based panel, leather, textile fabric, plastic, glass, stone and other auxiliary materials, or the furniture fully made of metal material
[GB/T 28202-2011, 2.1.2]
3.2
vertical degree of adjoining side
the nonrectangular degree when the product (component) is rectangular
[GB/T 28202-2011, 2.9.3.5]
3.3
plane deviation
distance difference between the product plane which shall be horizontal and the measurement datum
3.4
level degree
partial levelness of product or component surface which shall be even within the range of 0 mm~150 mm
3.5
circular degree
deformation degree generated at circular tube bend of product due to local extrusion or stretching
[GB/T 28202-2011, 2.9.3.11]
3.6
place difference degree
distance deviation between adjacent surfaces of door and frame, doors, door and drawer, drawer and frame, and drawers in product
[GB/T 28202-2011, 2.9.3.4]
3.7
edge banding of wood-based panel
technological process of sealing treatment with various edge bands or other materials (coating, wax, etc.) for edges of such boards as density board, particleboard, multi-plywood and core-board
[QB/T 1951.2-2013, 3.1]
3.8
interface
plane or end face fixed and connected with each other with certain carpentry (e.g., tenoning, slotting, gluing, pin, connecting piece, etc.)
[QB/T 1951.2-2013, 3.2]
3.9
outward appearance
external visible surface of product in initial condition
3.10
inward appearance
visible surface shown by such partition components such as clapboard or shelf board of product after movable components such as door and drawer are opened
4 Classification
Furniture may be classified as followed according to their use locations:
a) Metal furniture for indoor use;
b) Metal furniture for outdoor use.
5 Requirements
5.1 Main dimensions and deviation
The main dimensions and deviation of product shall meet those specified in Table 1.
Foreword II
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification
5 Requirements
6 Test Methods
7 Inspection Procedures
8 Inspection Rules
9 Marking, Use Instruction, Packaging, Transportation and Storage
Annex A (Normative) Annual Average Equilibrium Moisture Content of Wood in Regions of China
Annex B (Informative) Standards of Wood-based Panel Commonly Used for Furniture
Annex C (Informative) Test Level for Mechanical Performance of Furniture
References
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed according to the rules specified in GB/T 1.1-2009.
This standard replaces GB/T 3325-2008 Metal Furniture - General Technical Requirements and the following changes have been made with respect to GB/T 3325-2008:
——The scope is modified, and the inapplicable scope of this standard is defined (see Chapter 1; Chapter 1 in 2008 edition);
——Parts of normative references are modified;
——Terms and definitions given in GB/T 28202-2011 are added; and the terms "edge banding of wood-based panel" and "interface" and their definitions are added (see 3.7; 3.8 in 2008 edition);
——Provisions of "Chapter 4 Classification" are added (see Chapter 4);
——The dimensional requirements of book cabinet (file cabinet) are modified, the dimensional requirements of cabinet base board are added; and the dimensional requirements of bunk bed are modified (see 5.1; 4.1.1 in 2008 edition);
——The requirement and test method for depth of drawer are deleted (see 4.2 and 5.3.10 in 2008 edition);
——The height requirements of crator ripple on welded parts and those of wrinkle at the bend of circular tube and flat tube are deleted, the requirements for flexible and rigid covering parts are modified and changed to flexible covering parts and plastic parts, and the requirements for glass parts are modified (see 5.3; 4.3 in 2008 edition);
——The structure of this standard is modified, the contents of other requirements are reclassified according to the principle of standardized performance and included in the parts of appearance performance, physical and chemical performance, and safety performance respectively (see 5.3, 5.4 and 5.5; 4.4 in 2008 edition);
——Safety performance is modified and divided into structure safety, limit of harmful substances and combustion safety. Anti-drop requirements for push-and-pull members, clearance requirements for holes and anti-sliding requirements for vertically-sliding components are added, and requirements and test methods for volatile harmful substances are modified (see 5.4; 4.5 in 2008 edition);
——Glossiness requirements for coating on metal parts are deleted, requirements for resistance to cigarette burn of film coating are deleted, and wearability requirements for film are modified; requirements for pH value and color fastness of overlaid materials (textile fabric and leather) are added, and requirements for physical and chemical performance of glass and plastic parts are modified (see 5.5.1; 4.6.1 in 2008 edition);
——Technical requirements of desks, cabinets, chairs and stools are modified, and requirements and test methods for bunk bed are added (see 5.6; 4.7 in 2008 edition);
——The description language for accuracy is modified, and the test methods such as hole clearance and automatic folding are add (see 6.4.1);
——The requirements for calculation of acceptance coefficient are deleted (see 7.4 in 2008 edition).
Attention is drawn to the possibility that some of the elements of this standard may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
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 3325-1995, GB/T 3325-2008.
General Technical Requirements for Metal Furniture
1 Scope
This standard specifies terms and definitions, classification, requirements, test methods, inspection procedures, inspection rules, marking, use instruction, packaging, transportation and storage of metal furniture.
This standard is applicable to the metal furniture product with the major structure made of metal. Other furniture containing metal member 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 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 Determination of Impact Resistance of Film
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 3920 Textiles - Tests for Colour Fastness - Colour Fastness to Rubbing
GB/T 4689.20 Leather - Determination for Adhesion of Finish
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 Test of Surface Coatings of Furniture - Part 4: Determination of Adhesion - Cross Cut
GB/T 4893.7 Test of Surface Coatings of Furniture - Part 7: Determination of Surface Resistance to Alternation of Heat and Cold
GB/T 4893.8 Test of Surface Coatings of Furniture - Part 8: Determination of Wearability
GB/T 4893.9 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 Paints and Varnishes - Determination of Film Hardness by Pencil Test
GB/T 7573 Textiles - Determination of pH of the Aqueous Extract
GB/T 9286 Paints and Varnishes - Cross Cut Test for Films
GB/T 10357 (all parts) Test of Mechanical Properties of Furniture
GB/T 13667.1-2015 Steel Bookshelves - Part 1: Bookshelf of Single Column and Multi-column
GB/T 16422.2 Plastics - Methods of the Exposure to Laboratory Light Sources - Part 2: Xenon-arc Sources
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 18580 Indoor Decorating and Refurbishing Materials - Limit of Formaldehyde Emission of Woodbased Panels and Finishing Products
GB 18584 Indoor Decorating and Refurbishing Materials - Limit of Harmful Substances of Wood Based Furniture
CB/T 19942 Leather and Fur - Chemical Tests - Determination of Banned Azo Colourants
GB 24430.1-2009 Bunk Beds for Domestic Use - Safety - Part 1: Requirements
GB/T 24430.2-2009 Bunk Beds for Domestic Use - Safety - Part 2: Test
GB 28008-2011 Safety Requirements of Glass Furniture
GB/T 28202-2011 Furniture Industry Terminology
QB/T 1951.2-2013 Metal furniture - Quality Test and Evaluation
QB/T 2537 Leather - Tests for Colour Fastness - Colour Fastness to Reciprocating Rubbing
QB/T 2724 Leather - Chemical Test - Determination of ph
QB/T 3826 Corrosion-resistant Testing Method of the Metal Deposits and Conversion Coatings for the Light Industrial Products - Neutral Salt Spraying Test (NSS)
QB/T 4156-2010 Office Furniture - Microcomputer Desk
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
metal furniture
the furniture assembled from the frame or member mainly composed of metal tube, metal plate and other metal sections and the parts fabricated with wood, wood-based panel, leather, textile fabric, plastic, glass, stone and other auxiliary materials, or the furniture fully made of metal material
[GB/T 28202-2011, 2.1.2]
3.2
vertical degree of adjoining side
the nonrectangular degree when the product (component) is rectangular
[GB/T 28202-2011, 2.9.3.5]
3.3
plane deviation
distance difference between the product plane which shall be horizontal and the measurement datum
3.4
level degree
partial levelness of product or component surface which shall be even within the range of 0 mm~150 mm
3.5
circular degree
deformation degree generated at circular tube bend of product due to local extrusion or stretching
[GB/T 28202-2011, 2.9.3.11]
3.6
place difference degree
distance deviation between adjacent surfaces of door and frame, doors, door and drawer, drawer and frame, and drawers in product
[GB/T 28202-2011, 2.9.3.4]
3.7
edge banding of wood-based panel
technological process of sealing treatment with various edge bands or other materials (coating, wax, etc.) for edges of such boards as density board, particleboard, multi-plywood and core-board
[QB/T 1951.2-2013, 3.1]
3.8
interface
plane or end face fixed and connected with each other with certain carpentry (e.g., tenoning, slotting, gluing, pin, connecting piece, etc.)
[QB/T 1951.2-2013, 3.2]
3.9
outward appearance
external visible surface of product in initial condition
3.10
inward appearance
visible surface shown by such partition components such as clapboard or shelf board of product after movable components such as door and drawer are opened
4 Classification
Furniture may be classified as followed according to their use locations:
a) Metal furniture for indoor use;
b) Metal furniture for outdoor use.
5 Requirements
5.1 Main dimensions and deviation
The main dimensions and deviation of product shall meet those specified in Table 1.
Contents of GB/T 3325-2017
Foreword II
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification
5 Requirements
6 Test Methods
7 Inspection Procedures
8 Inspection Rules
9 Marking, Use Instruction, Packaging, Transportation and Storage
Annex A (Normative) Annual Average Equilibrium Moisture Content of Wood in Regions of China
Annex B (Informative) Standards of Wood-based Panel Commonly Used for Furniture
Annex C (Informative) Test Level for Mechanical Performance of Furniture
References
