HG/T 4657-2014Textile dyeing and finishing auxiliaries - Catalase - Determination of enzyme activity (English PDF)
纺织染整助剂 过氧化氢酶 酶活力的测定 高清版
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
May 12, 2014
Implementation date
October 1, 2014
Scope
HG/T 4657-2014 is the English-translated version of 纺织染整助剂 过氧化氢酶 酶活力的测定 高清版.
HG/T 4657-2014 is a recommended Chinese chemical industry standard that gives a method rather than a product specification: it describes how the enzyme activity of catalase used as a textile dyeing and finishing auxiliary is determined. The method is meant for the catalase employed in the oxygen-removal treatment of fabrics during dyeing and finishing. It is carried out with the general reagent and laboratory water standards GB/T 601-2002, GB/T 603-2002 and GB/T 6682-2008, and the results are treated in line with GB/T 8170-2008. Issued on 12 May 2014, it has applied since 1 October 2014.
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Document preview — HG/T 4657-2014
National Standard of the People's Republic of China
- ICS
- 71.100.40
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
HG/T 4657-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 601-2002
GB/T 603-2002
GB/T 6682-2008
GB/T 8170-2008
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 601-2002Chemical Reagent - Preparations of Standard Volumetric Solutions
- GB/T 603-2002Chemical reagent - Preparations of reagent solutions for use in test methods
- GB/T 6682-2008Water for analytical laboratory use - Specification and test methods
- GB/T 8170-2008Rules of rounding off for numerical values & expression and judgement of limiting values
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Related Standards
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
HG/T 3066-2025 — Rubber compounding ingredients - Precipitated hydrated silica - Determination of loss on ignition of the dried sample
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HG/T 4657-2014
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