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31. | Type732 cation exchange resin was added in nickel bath to separate nickel ions and other cations, boric acid and chloride ions were then separately titrated by sodium hydroxide and silver nitrate. |
| 采用732型阳离子交换树脂分离镍及其它阳离子后,分别用氢氧化钠和硝酸银滴定硼酸和氯离子。 |
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32. | Boric acid for industrial use-Determination of chloride content |
| GB/T12684.5-1990工业硼酸氯化物含量的测定 |
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33. | Boric acid for industrial use-Determination of chromium content |
| GB/T12684.10-1990工业硼酸铬含量的测定 |
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34. | Boric acid for industrial use-Determination of insoluble substance content in water |
| GB/T12684.2-1990工业硼酸水不溶物含量的测定 |
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35. | Boric acid for industrial use-Determination of cobalt content |
| GB/T12684.11-1990工业硼酸钴含量的测定 |
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36. | mixture of boric acid and bleaching powder |
| 硼酸漂白粉 |
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37. | Boric acid for industrial use-Determination of iron content |
| GB/T12684.6-1990工业硼酸铁含量的测定 |
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38. | Boric acid for industrial use-Determination of heavy metal content |
| GB/T12684.8-1990工业硼酸重金属含量的测定 |
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39. | Boric acid for industrial use-Determination of manganese content |
| GB/T12684.9-1990工业硼酸锰含量的测定 |
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40. | Boric acid for industrial use-Determination of sulphate content by visual turbidimetry |
| GB/T12684.4-1990工业硼酸硫酸盐含量的测定目视比浊法 |
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