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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 8570.7-2010 |
Determination of liquefied anhydrous ammonia - Part 7: Iron content - o-Phenathroline spectrophotometric method 液体无水氨的测定方法 第7部分：铁含量 邻菲?啉分光光度法 |
China National Standards Phenathroline |
 English PDF |
| GB/T 6276.6-2010 |
Determination of ammonium hydrogen carbonate for industrial use - Part 6: Iron content o - Phenathroline spectrophotometric method 工业用碳酸氢铵的测定方法 第6部分：铁含量 邻菲啰啉分光光度法 |
China National Standards Phenathroline |
English PDF |
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