This standard specifies the requirements, sampling, test methods, inspection rules, signs, labels, packaging, transportation and storage of sulfide reduction deep blue 4RB (sulfide reduction blue RNX, CI reduction blue 43). This product is mainly used for dyeing cotton textiles.
HG/T 3418-2002 history
2010HG/T 3418-2010 Sulphur vat dark blue 4RB(C.I. Vat blue 43)