Restricted Azo Dye and Colorant Testing
category
Restricted azo dye testing identifies aromatic amines with carcinogenic potential released by reductive cleavage of azo linkages in textile dyes under simulated skin contact conditions, using sodium dithionite reduction followed by diethyl ether extraction and GC-MS or HPLC-DAD quantification against regulatory limits of 30 milligrams per kilogram per amine.
Role
Prevents consumer exposure to carcinogenic aromatic amines from banned azo dyes in skin-contact textiles, ensuring compliance with EU REACH Annex XVII restrictions on 22 carcinogenic amines and equivalent national regulations across global textile export markets.
Subtopics
- Reductive Cleavage Method for Azo Dyes EN ISO 14362 EN ISO 14362 extracts dyes from fabric with citrate buffer at pH 6, reduces azo bonds with sodium di…
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