HG/T 2021-1991High temperature resistant oil O shape rubber seal ring materials (English PDF)
耐高温滑油O形橡胶密封圈材料
HG/T 2021 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| HG/T 2021-2014 | O-rings resistant to high temperature and oil | Valid |
| HG/T 2021-1991 | High temperature resistant oil O shape rubber seal ring materials | Obsolete |
HG/T 2021-1991 is obsolete. It has been replaced by HG/T 2021-2014. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
RCMCI
Level / Type
Industry · Recommended
Issue date
June 27, 1991
Implementation date
December 1, 1991
Scope
HG/T 2021-1991 is the English-translated version of 耐高温滑油O形橡胶密封圈材料.
HG/T 2021-1991 is the Chinese industry standard "High temperature resistant oil O shape rubber seal ring materials". It was issued on June 27, 1991 by RCMCI, and took effect on December 1, 1991. It is obsolete: it has been replaced by HG/T 2021-2014.
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Document preview — HG/T 2021-1991
National Standard of the People's Republic of China
Issued by: RCMCI
Contents
- Document data
1 Document data
Sector: Chemical Industry (industry standard).
Issuing body: RCMCI.
Date of issue: 1991-06-27.
Date of implementation: 1991-12-01.
Status: obsolete, replaced by HG/T 2021-2014.
......
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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