This standard specifies the requirements, sampling, test methods, inspection rules, signs, labels, packaging, transportation and storage of acid dark yellow NM-RL (CI acid yellow 220) products. This standard applies to product quality control of acidic dark yellow NM-RL. Structural formula: Molecular formula: CHClCoNOS·4Na Relative molecular mass: 1206.72 (according to the 2007 international relative atomic mass) CAS RN: 70851-34-2
HG/T 4250-2011 Referenced Document
GB 19601 Limit and determination of 23 harmful aromatic amines in dye products*, 2013-09-06 Update
GB 20814 Limit and determination of the quantity of heavy-metal elements in dye products*, 2014-07-24 Update