YS/T 254.7-2011Methods for chemical analysis of beryllium concentrate and beryl. Part 7: Determination of water content. Gravimetric method (English PDF)
铍精矿、绿柱石化学分析方法 第7部分：水分量的测定 重量法
YS/T 254.7 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| YS/T 254.7-2025 | Methods for chemical analysis of beryllium concentrate and beryl—Part 7: Determination of moisture content—Gravimetry | Valid |
| YS/T 254.7-2011 | Methods for chemical analysis of beryllium concentrate and beryl. Part 7: Determination of water content. Gravimetric method | Obsolete |
YS/T 254.7-2011 is obsolete. It has been replaced by YS/T 254.7-2025. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
Ministry of Industry and Information Technology
Level / Type
National · Recommended
Issue date
December 20, 2011
Implementation date
July 1, 2012
Scope
YS/T 254.7-2011 is the English-translated version of 铍精矿、绿柱石化学分析方法 第7部分：水分量的测定 重量法.
YS/T 254.7-2011 is the Chinese industry standard "Methods for chemical analysis of beryllium concentrate and beryl. Part 7: Determination of water content. Gravimetric method".
It was issued on December 20, 2011 by the Ministry of Industry and Information Technology, and took effect on July 1, 2012. It is obsolete: it has been replaced by YS/T 254.7-2025.
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Document preview — YS/T 254.7-2011
National Standard of the People's Republic of China
Issued by: Ministry of Industry and Information Technology
Contents
- Document data
1 Document data
Sector: National Recommended (industry standard).
Issuing body: Ministry of Industry and Information Technology.
Date of issue: 2011-12-20.
Date of implementation: 2012-07-01.
Status: obsolete, replaced by YS/T 254.7-2025.
......
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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Related Standards
YS/T 254.8-2023 — Methods for chemical analysis of beryllium concentrate and beryl - Part 8: Determination of beryllium oxide, ferric oxide, calcium oxide and phosphorus content Inductively coupled plasma atomic emission spectrometry
YS/T 254.6-1994 — Methods for chemical analysis of beryllium concentrates-beryl The atomic absorption spectrophotometric method for the determination of calcium oxide content
YS/T 254.6-2011 — Methods for chemical analysis of beryllium concentrate and beryl. Part 6: Determination of calcium oxide content. Flame atomic absorption spectrometry
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YS/T 254.7-2011
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