YS/T 223-2007Selenium (English PDF)
硒
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Issued by
National Development and Reform Commission
Level / Type
National · Recommended
Issue date
November 14, 2007
Implementation date
May 1, 2008
Scope
YS/T 223-2007 is the English-translated version of 硒.
YS/T 223-2007 — Selenium
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Document preview — YS/T 223-2007
National Standard of the People's Republic of China
- ICS
- 77.150
- Classification
- H 81
- Replacing
- YS/T 223-1996
Issued by: National Development and Reform Commission
Contents
- What this standard covers1
- Document data2
What this standard covers
This standard specifies the selenium requirements, test methods, test rules, marking, packaging, transportation and storage. This standard applies to copper, lead, zinc and other metallurgical production process selenium comprehensive recovery after further separation and purification of the raw material obtained selenium.
Document data
International classification (ICS): 77.150.
Chinese classification (CCS): H81.
Estimated length of the Chinese original: 7,791 words.
Supersedes the earlier edition YS/T 223-1996.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 5 pages — is available in the English PDF.
Referenced standards
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Related Standards
YS/T 1115.10-2026 — Chemical analysis methods of copper, lead and zinc ores and tailings - Part 10: Determination of gold, silver, molybdenum, arsenic, tungsten, bismuth, gallium, indium, thallium, selenium, tellurium and germanium contents - Inductively coupled plasma mass spectrometry
YS/T 1115.7-2026 — Methods for chemical analysis of copper, lead, zinc ores and tailings - Part 7: Determination of molybdenum content - Thiocyanate spectrophotometric method
YS/T 1115.8-2026 — Methods for chemical analysis of copper, lead, zinc ores and tailings - Part 8: Determination of fluorine content - Ion-selective electrode method and ion chromatography
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YS/T 223-2007
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