1 Scope
This standard specifies the terminologies and definitions, product classification, requirements, test methods, inspection rules, and marking, packaging, transportation and storage of sofa.
This standard is applicable to sofa for indoor use. Where specific product standards are available, the requirements of the relevant product standards shall be complied with.
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 (including any amendments) applies to this document.
GB/T 1732 Determination of Impact Resistance of Film
GB/T 3324-2008 Wooden furniture - General Technical Requirements
GB/T 3325-2008 Metal Furniture - General Technical Requirements
GB/T 3920-2008 Textiles - Tests for Color Fastness - Color Fastness to Rubbing
GB/T 3922-1995 Textiles - Testing Method for Color Fastness to Perspiration
GB/T 4689.20-1996 Leather - Determination for Adhesion of Finish
GB/T 4893.4 Furniture - Assessment of Adhesion of Surface Coatings - Cross Cut
GB/T 4893.7 Furniture - Assessment of Surface Resistance to Alteration of Heat and Cold
GB/T 4893.8 Furniture - Assessment of Wearability of Surface Coatings
GB/T 4893.9 Furniture - Test for Surfaces - Assessment of Resistance to Impact
GB 5296.6 Instructions for Use of Products of Consumer Interest - Part 6: Furniture
GB/T 6343-2009 Cellular Plastics and Rubbers - Determination of Apparent Density
GB/T 6669-2008 Flexible Cellular Polymeric Materials - Determination of Compression Set
GB/T 6670-2008 Flexible Cellular Polymeric Materials - Determination of Resilience by Ball Rebound
GB/T 6739-2006 Paints and Varnishes - Determination of Film Hardness by Pencil Test
GB/T 9286 Paints and Varnishes - Cross Cut Test for Films
GB/T 13667.1-2003 General Specification for Steel Book Shelves
GB 17927 (all parts) Upholstered Furniture - Assessment of the Resistance to Ignition of the Spring Mattress and the Sofa
QB/T 2537-2001 Leather - Tests for Colour Fastness - Colour Fastness to Cycles of To-and-fro Rubbing
3 Terminologies and Definitions
For the purposes of this document, the following terminologies and definitions apply.
3.1
Sofa
A kind of seat composed of main body frame (of wood, metal or other rigid materials) and surface cover (cladded with elastic material or other soft materials).
3.2
Inserting line
The line being inserted in when the fabric is sewed up.
3.3
Edge
The peripheral part of seat, back and armrest of sofa.
3.4
Zigzag spring
A kind of continuous sigmoid spring bent from spring steel wire.
3.5
Compression amount
A displacement difference of sofa seat surface along the forced directions measured at a detection position on the sofa seat surface when applying two vertical downward forces respectively by passing through the center of round cushion block.
3.6
Relaxing amount of back
Foreword I
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Product Classification
5 Requirements
6 Test Methods
7 Inspection Rules
8 Marking, Packaging, Transportation and Storage
Appendix A (Normative) Equilibrium Moisture Content of Wood in Various Regions of China
Appendix B (Normative) Mechanical Property Test
Bibliography
