Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
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 Method determination spectral |
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GB/T 10557-1989 |
Method for determination of spectral sensitivity of photographic materials 感光材料光谱灵敏度测定方法 |
China National Standards Method determination spectral |
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