HG/T 4331-2012Water treatment chemicals - Evaluation method for coagulation performance (English PDF)
水处理剂混凝性能的评价方法
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
November 7, 2012
Implementation date
March 1, 2013
Scope
HG/T 4331-2012 is the English-translated version of 水处理剂混凝性能的评价方法.
HG/T 4331-2012 is the recommended Chinese chemical industry standard that describes how the coagulation performance of water treatment chemicals is to be evaluated. It specifies the coagulation and flocculation test used to judge a coagulant and the measurement of how well the chemical removes organic matter from water. The methods are meant for determining the coagulation performance of water treatment agents rather than for setting product specifications. The standard sits under the Chinese classification G77 and under ICS 13.060.30 and 19.020. Its procedures rely on GB/T 601, GB/T 602-2002, GB/T 603-2002, GB/T 6682-2008 and GB/T 15456-2008. Issued on 7 November 2012, it has applied since 1 March 2013.
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Document preview — HG/T 4331-2012
National Standard of the People's Republic of China
- ICS
- 13.060.30
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
HG/T 4331-2012 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 601
GB/T 602-2002
GB/T 603-2002
GB/T 6682-2008
GB/T 15456-2008
......
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 601Chemical Reagent - Preparations of Standard Volumetric Solutions
- GB/T 602-2002Chemical reagent - Preparation of standard solutions for impurity determination
- 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 15456-2008Determination of the chemical oxygen demand in industrial circulating cooling water - Permanganate index method
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