QB/T 4342-2012 Safety requirements for polyurethane synthetic leather clothing
1 Scope
This standard specifies the safety classes, requirements and test methods of polyurethane synthetic leather for clothing.
This standard is applicable to synthetic leather for clothing made of main raw materials (such as base fabric and polyurethane resin) by wet or dry coating and post-processing.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2912.1-2009 Textiles - Determination of formaldehyde - part 1: Free and hydrolyzed formaldehyde (water extraction method)
GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods
GB/T 7573-2002 Textiles - Determination of pH of the aqueous extract
GB/T 17593.1-2006 Textiles - Determination of heavy metals - Part 1: Atomic absorption spectrophotometry
GB/T 17593.3-2006 Textiles - Determination of heavy metals - Part 3: Chromium(VI) - Spectrophotometry
GB/T 18414.1-2006 Textiles - Determination of the content of chlorinated phenols - Part 1: Gas chromatography/mass spectrography
GB/T 18885-2009 Technical specifications of ecological textiles
GB/T 19942-2005 Leather and fur - Chemical tests - Determination of banned azo colourants
GB/T 20382-2006 Textiles - Determination of carcinogenic dyestuffs
GB/T 20383-2006 Textiles - Determination of allergenous disperse dyestuffs
GB/T 20385-2006 Textiles - Determination of organotin compounds
GB/T 20386-2006 Textiles - Determination of the content of ortho-phenylphenol
GB/T 20388-2006 Textiles - Determination of the content of phthalates
GB/T 23296-2009 Food contact materials - Determination of isocyanates in plastics - High performance liquid chromatography
QB/T 4046-2010 General safety specification for polyurethane superfine fibre synthetic leather
SN/T 1877.2-2007 Determination of polycyclic aromatic hydrocarbons in plastic and plastic article
SN/T 2005.1-2005 Determination of polybromobiphenyls and polybromobiphenyl ethers in electrical and electronic equipment - Part 1: High performance liquid chromatography method
SN/T 2446-2010 Determination of dimethyl fumarate in leather and leather products - Gas chromatography-mass method
3 Safety classes
The products are classified into two classes by purposes, see Table 1.
Table 1 Safety classes
Foreword i
1 Scope
2 Normative references
3 Safety classes
4 Requirements
5 Test methods
Annex A (Normative) List of aromatic amines that are not allowed to be decomposed from dyes under reducing conditions, as well as carcinogenic dyes and allergy-inducing dyes
Annex B (Normative) Restricted phthalate plasticizers
Annex C (Normative) List of polycyclic aromatic hydrocarbons
Annex D (Normative) Determination on residual amount of dimethylformamide in synthetic leather - Gas chromatography
