Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 7731.3-2008 |
Ferrotungsten - Determination of copper content - Bis(cyclohexanone)oxalyldihydrazone photometric method and flame atomic absorption spectrometric method 钨铁 铜含量的测定 双环己酮草酰二腙光度法和火焰原子吸收光谱法 |
China National Standards oxalyldihydrazone |
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