HG/T 30021-2014Technical specification for production safety of reactive black KN-8BG (C.I. Reactive Black 5) (English PDF)

HG/T 30021-2014 is the English-translated version of 反应黑KN-8BG（C.I.反应黑5）生产安全技术规范.

Production safety in a dye plant is the subject of HG/T 30021-2014, a recommended chemical industry standard covering reactive black KN-8BG, the dye listed as C.I. Reactive Black 5. The process it deals with begins with hydrochloric acid, sodium nitrite, 4-ethylsulfone aniline sulfate known as para ester, sodium bicarbonate and H acid, that is 1-amino-8-naphthol-3,6-disulfonic acid, and takes them through diazotization followed by acidic and then basic coupling. Because it belongs to group G01 and to ICS 71.020, its concern is the safety of the plant and of the people working in it, not the quality of the dye. Cited documents include GB 7231, GB 7251.1, GB 12158, GB 50016 and GBZ 2.2. Issued on 24 December 2014, it has applied since 1 June 2015.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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