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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 40915-2021 |
Determination of SiO2,Al2O3,Fe2O3,K2O,Na2O,CaO,MgO content of soda-lime-silica glass by X-ray fluorescence spectrometric method X射线荧光光谱法测定钠钙硅玻璃中SiO2、Al2O3、Fe2O3、K2O、Na2O、CaO、MgO含量 |
China National Standards Fe2 |
 English PDF |
| GB/T 34176-2017 |
Chemical analysis methods for determination of Fe2+ and Fe3+ in refractory products by the spectral photometric method with 1,10-phenanthroline 邻二氮杂菲分光光度法测定耐火材料中的二价和三价铁离子化学分析方法 |
China National Standards Fe2 |
English PDF |
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