| 1. | Chemical reagent . ammonium persulfate 化学试剂过硫酸铵 |
| 2. | Paucity manganese in drinking water by way of oxidization of ammonium persulfate 过硫酸铵氧化法测定生活饮水中的微量锰 |
| 3. | The ammonium persulfate oxidation volumetric method for the determination of chromium content 过硫酸铵氧化容量法测定铬量 |
| 4. | The alkaline fusion - ammonium persulfate oxidation volumetric method for the determination of chromium content 过硫酸铵氧化容量法测定铬量 |
| 5. | Fireclay and high - alumina refractories - determination of manganese oxide content - ammonium persulfate photometric method 过硫酸铵光度法测定氧化锰量 |
| 6. | Test method for determination of chromic oxide in basic chromium tanning liquors ammonium persulfate oxidation 基本铬鞣皮溶剂中氧化铬测定的试验方法 |
| 7. | Methods for chemical analysis of ferro - chromium - the ammonium persulfate oxidation volumetric method for the determination of chromium content 铬铁化学分析方法过硫酸铵氧化容量法测定铬量 |
| 8. | Methods for chemical analysis of iron , steel and alloy - the ammonium persulfate oxidation volumetric method for the determination of chromium content 钢铁及合金化学分析方法过硫酸铵氧化容量法测定铬量 |
| 9. | Methods for chemical analysis of silicochromium - the alkaline fusion - ammonium persulfate oxidation volumetric method for the determination of chromium content 硅铬合金化学分析方法碱熔-过硫酸铵氧化容量法测定铬量 |
| 10. | Method for chemical analysis of constantan resistance alloy the ammonium persulfate oxidation - ammonium ferrous sulfate titrimetric method for the determination of manganese content 康铜电阻合金化学分析方法过硫酸铵氧化-硫酸亚铁铵滴定法测定锰量 |