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Sofa is the major consumer goods in furniture products, quantity bedding face is wide. This standard is to the QB/T1952.1-1999 standard revision, compared with the original standard main changes are as follows:
1, the product category: the standard of product classification according to the seat surface elastic material, coated fabrics and use function classification.
2, the size of the main requirements: this standard main dimensions of product bridge former width, and depth in the reserves, to the size of the front and back high changes made a corresponding adjustment, and cancel the high dimensional deviation of the size and shape of the armrest.
3,Materials requirements: (1). Product appearance material should be consistent with the logo express; 2. Internal materials should be without bark; (3). The wood moisture content should not be higher than average annual timber products region equilibrium moisture content, the original provisions for + 1%. And in the standard appendix B (normative appendix) increased in various areas of our country lumber balance moisture content value as the basis of product evaluation. .  of textile fabrics, leather and artificial leather materials such as increased dry friction fastness of grade 4 or more rules.
4, mechanical property requirements: the mechanics performance test of this international standard in accordance with the requirements of unified durability classification (durability requirements stipulated in the standard by the sofa elastic type), namely durability should pass: A level 60000 times; Level B and C 40000 times 20000 times. And the back loose loose quantity, armrest and compress has made the corresponding adjustment.
5, flame retardancy requirement: considering the trend of the development of product, reduce the bodily harm.
6, inspection results assessment: product inspection is divided into type testing and factory inspection. Inspection result evaluation is: the classy article (top), grade a nonconforming product (grade B), (C) and nonconforming product.