HG/T 3526-2011Industrial circulating cooling water - Determination of nitrate - Sulfosalicylic acid spectrophotometric method (English PDF)
工业循环冷却水中硝酸盐的测定 磺基水杨酸分光光度法
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
December 20, 2011
Implementation date
July 1, 2012
Scope
HG/T 3526-2011 is the English-translated version of 工业循环冷却水中硝酸盐的测定 磺基水杨酸分光光度法.
HG/T 3526-2011 is a recommended chemical industry standard of China describing the spectrophotometric determination of nitrate in industrial circulating cooling water with sulfosalicylic acid. It is written for water samples whose nitrate content lies between 0.1 mg/L and 10.0 mg/L. The method is a non-equivalent adoption of ISO 7890-3:1988. GB/T 602-2002 and GB/T 6682 are cited. Within the Chinese classification the standard sits under G76, and it carries the international classifications 13.060.25 and 71.040.40. It replaces the earlier edition HG/T 3526-2003, and was issued on 20 December 2011, having applied since 1 July 2012.
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Document preview — HG/T 3526-2011
National Standard of the People's Republic of China
- ICS
- 13.060.25
- Replacing
- HG/T 3526-2003
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
HG/T 3526-2011 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 602-2002
GB/T 6682
......
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
Similar standards
Editions of HG/T 3526
| Edition | Title | Revision | Status |
|---|---|---|---|
| HG/T 3526-2011 | Industrial circulating cooling water - Determination of nitrate - Sulfosalicylic acid spectrophotometric method | current edition | Current |
| HG/T 3526-2003 | Industrial circulating cooling water - Determination of nitrate - Sulfosalicylic acid spectrophotometric method | previous edition | Superseded |
This page sells the current edition, HG/T 3526-2011. Earlier editions are listed for reference only.
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