SN/T 3012-2011Determination of tungsten trioxide in tungsten ores. X-ray fluorescence spectrom (English PDF)
钨精矿中三氧化钨含量的测定 X射线荧光光谱法
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Issued by
General Administration of Customs
Level / Type
National · Recommended
Issue date
September 9, 2011
Implementation date
April 1, 2012
Scope
SN/T 3012-2011 is the English-translated version of 钨精矿中三氧化钨含量的测定 X射线荧光光谱法.
SN/T 3012-2011 — This standard specifies the method for the determination of tungsten concentrates - Determination of tungsten trioxide (WO3) content using wavelength dispersive X-ray fluorescence spectrometry.
This standard applies to tungsten ore concentrates, also applicable to the determination of other tungsten ores WO3 content measurement range (mass fraction). 17% 70%.
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Document preview — SN/T 3012-2011
National Standard of the People's Republic of China
- ICS
- 73.060.99
- Classification
- D 43
Issued by: General Administration of Customs
Contents
- What this standard covers1
- Document data2
- Standards quoted by this document3
What this standard covers
This standard specifies the wavelength dispersive X-ray fluorescence spectrometry tungsten tungsten trioxide content determination. This standard applies to tungsten, also applies to other tungsten ore of tungsten trioxide content. Measuring range (mass fraction): 17% to 70%.
Document data
International classification (ICS): 73.060.99.
Chinese classification (CCS): D43.
Estimated length of the Chinese original: 7,749 words.
Standards quoted by this document
GB/T 4414; GB/T 6379.2; GB/T 6682; GB/T 16597
......
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
Normative references
- GB/T 4414Methods of sampling and sample preparation of tungsten concentrates in bags
- GB/T 6379.2Measurement methods and results -- Accuracy (trueness and precision) -- Part 2: Determine the standard methods of measurement repeatability and reproducibility of the basic method
- GB/T 6379.2-2004Measurement methods and results -- Accuracy (trueness and precision) -- Part 2: Determine the standard methods of measurement repeatability and reproducibility of the basic method
- GB/T 6682Water for analytical laboratory use - Specification and test methods
- GB/T 6682-2008Water for analytical laboratory use - Specification and test methods
- GB/T 16597Analytical methods of metallurgical products—General rule for X-ray fluorescence spectrometric methods
ISO 5275 · ISO 3696
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Related Standards
GB/T 16597-2019 — Analytical methods of metallurgical products—General rule for X-ray fluorescence spectrometric methods
GB/T 4414-2013 — Methods of sampling and sample preparation of tungsten concentrates in bags
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