HG 2227-1991Water treatment agent aluminum sulfate (English PDF)
水处理剂 硫酸铝
HG 2227 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| HG 2227-2004 | Water treatment chemicals -- aluminum sulfate | Valid |
| HG 2227-1991 | Water treatment agent aluminum sulfate | Obsolete |
HG 2227-1991 is obsolete. It has been replaced by HG 2227-2004. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
Ministry of Chemical Industry
Level / Type
National · Mandatory
Issue date
August 19, 1991
Implementation date
January 1, 1992
Scope
HG 2227-1991 is the English-translated version of 水处理剂 硫酸铝.
HG 2227-1991 is the Chinese industry standard "Water treatment agent aluminum sulfate". It was issued on August 19, 1991 by the Ministry of Chemical Industry, and took effect on January 1, 1992. It is obsolete: it has been replaced by HG 2227-2004.
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Document preview — HG 2227-1991
National Standard of the People's Republic of China
Issued by: Ministry of Chemical Industry
Contents
- Document data
1 Document data
Sector: Chemical Industry (industry standard).
Issuing body: Ministry of Chemical Industry.
Date of issue: 1991-08-19.
Date of implementation: 1992-01-01.
Status: obsolete, replaced by HG 2227-2004.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
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HG 2227-1991
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