People's living standards are improving day by day, and their awareness of consumption is also strengthening. Some high-quality and multi-functional clothes are more and more favored by consumers. Because the prohibited azo dyes will decompose carcinogens, which will seriously affect the health of the body; moreover, such dyes are usually colorless and tasteless, which can not be perceived by human sensory organs, or even reduced by washing, etc., so the textile standards at home and abroad are prohibited.
Azo detection is one of the necessary items required by international environmental protection requirements. According to the standard, the tested products shall not contain 24 kinds of azo dye intermediates. If one of them is detected, it is unqualified.
Applicable samples
■ clothing, bedding, towels, wigs, false eyebrows, hats, diapers and other sanitary products, sleeping bags
■ shoes, gloves, watch belts, handbags, various wallets, briefcases, chair covers
■ textile or leather toys, toys with textile or leather clothing, synthetic dyes, organic compound dyes
■ end use fabrics and yarns for consumers
Common azo test standards
GB/T17952-2011、GB18401-2010
EN14362-1:2003
CENISO/TS17234:2003
......
It mainly refers to the national standard method, and can also be tested in accordance with ASTM / IEC / en / din and other national standards.