| 1. | Chemical reagent - preparations of standard solutions for impurity 化学试剂杂质测定用标准溶液的制备 |
| 2. | Determination of mineral impurities in quick frozen fruits and vegetables 速冻水果和蔬菜的矿物杂质测定方法 |
| 3. | Determination of mechanical impurities in lubricating greases acid decomposition method 润滑脂机械杂质测定法 |
| 4. | Methods of test for spices and condiments - determination of extraneous matter 香料和调味品试验方法.第1部分:杂质测定 |
| 5. | Petroleum products and additives - determination of mechanical impurities - gravimetric method 石油产品和添加剂机械杂质测定法 |
| 6. | Methods of test for cereals and pulses - determination of impurities of animal origin in wheat flour and durum wheat semolina 谷物和豆类试验方法.第29部分:面粉和硬质小麦面粉中动物因素杂质测定 |
| 7. | Standard test method for determination of insoluble impurities contained in fats and oils used in fat liquors and stuffing compounds 脂肪水溶液和加脂化合物中使用的脂肪和油所含不溶性杂质测定的标准试验方法 |
| 8. | As to test for impurity : a certain amount of the impurity may be added to the sample to testify the accuracy and precision of the method 对于杂质的测定,一般取含一定杂质量的样品进行分析,证明此杂质测定其具有适宜的准确度和精密度。 |
| 9. | As for assay : analysis results shall be compared , as for test for impurity : if chromatographic graphs are available , peaks of impurities shall be compared 含量测定应比较两方法的分析结果,杂质测定若有色谱图,则应对比杂质峰的形状。 |
| 10. | Preparation of steel substrates before application of paints and related products - test methods for metallic blast - cleaning abrasives - determination of foreign matter 涂料和相关产品使用前钢基体的预处理.喷射金属清理磨料的试验方法.外来杂质测定 |