HG 2082-1991
Direct Dark Blue L-RB (Direct Fast Blue B2RL) (English Version)
- Standard No.
- HG 2082-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- Professional Standard - Chemical Industry
- Status
- 2007-03
- Replace By
- HG/T 2082-2006
- Latest
- HG/T 2082-2006
- Scope
- This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of direct dark blue L-3RB. This standard applies to the product obtained by coupling the diazo compound of amino acid C with 1-naphthylamine through diazotization, and then coupling the product with 1-naphthylamine-7-sulfonic acid through diazotization and coupling with J acid. Direct dark blue L-3RB. This product is mainly used for dyeing cellulose fibers.
HG 2082-1991 history
- 2006 HG/T 2082-2006 Direct deep blue L-3RB (C.I. direct blue 71)
- 1991 HG 2082-1991 Direct Dark Blue L-RB (Direct Fast Blue B2RL)
HG 2082-1991 Direct Dark Blue L-RB (Direct Fast Blue B2RL) was changed to HG/T 2082-2006 Direct deep blue L-3RB (C.I. direct blue 71).
