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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| SN/T 3012-2011 |
Determination of tungsten trioxide in tungsten ores. X-ray fluorescence spectrom 钨精矿中三氧化钨含量的测定 x射线荧光光谱法 |
China Import Export Inspection
Standards Determination tungsten trioxide |
 English PDF |
| SN/T 0951-2010 |
Determination of tungsten trioxide content in ammonium paratungstate for import and export 进出口仲钨酸铵中三氧化钨含量的测定 |
China Import Export Inspection
Standards Determination tungsten trioxide |
English PDF |
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