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See Chinese contents: QB/T 4839-2015 QB/T 4839-2015: Upholstered furniture. Foam mattress
This standard specifies the terms and definitions, code, product classification, requirements, test methods, inspection rules, markings, instructions for use, packaging, transportation and storage of upholstered furniture foam mattress. This standard is applicable to foam mattresses with a thickness of 130 mm and above, the foam mattresses with a thickness of less than 130 mm can make reference to this standard.
