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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| DL/T 502.9-2006 |
Analytical methods of steam and water in power plants. Part 9: Determination of aluminum (Spectrometric method using pyrocatechol violet) 火力发电厂水汽分析方法 第9部分:铝的测定（邻苯二酚紫分光光度法） |
China Electricity & Power
Standards catechol |
 English PDF |
| SH/T 1485.4-1995 |
(Industrial use - Determination of the t-butyl catechol divinylbenzene content spectrophotometry) 工业用二乙烯苯中特丁基邻苯二酚含量的测定 分光光度法 |
China Petrochemical Industry
Standards catechol |
English PDF |
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