This standard specifies the requirements, sampling, test methods, inspection rules, and marking, labeling, packaging, transportation and storage of optical brightener SWN (CI optical brightener 140) products. This standard applies to product quality control of optical brightener SWN.
HG/T 4034-2014 Referenced Document
GB 19601 Limit and determination of 23 harmful aromatic amines in dye products
GB 20814 Limit and determination of the quantity of heavy-metal elements in dye products
GB/T 2384-2007 Dyes intermediates.General method for the determination of melting range
GB/T 24101 Limit and determination of 4-aminoazobenzene in dye products*， 2018-12-28 Update
GB/T 6678-2003 General principles for sampling chemical products
GB/T 6682-2008 Water for analytical laboratory use.Specification and test methods
GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values