| 1. | Methods for determination of ammonia in flue gas 烟道气体中氨含量的测定方法 |
| 2. | Boric acid for industrial use - determination of ammonia content 工业硼酸氨含量的测定 |
| 3. | Liquefied anhydrous ammonia - estimating of ammonia content 氨含量的测定 |
| 4. | Determination of ammonia of gas in urban area 城市煤气中氨含量测定 |
| 5. | Ammonia solution - method for determination of ammonia content 氨溶液.第2部分:氨含量测定方法 |
| 6. | Soft soldering fluxes - test methods - determination of ammonia content 软钎焊剂.试验方法.第9部分:氨含量测定 |
| 7. | Testing of gaseous fuels and other gases ; determination of ammonia content 气体燃料和其它气体的试验.氨含量的测定 |
| 8. | Soft soldering fluxes . test methods . part 9 : determination of ammonia content 软钎焊剂.试验方法.第9部分:氨含量测定 |
| 9. | Light olefins for industrial use . determination of ammonia . spectrophotometric method 工业用轻烯烃.氨含量的测定.分光光度法 |
| 10. | Surface active agents - determination of free amine content of alkyl dimethyl betaines 表面活性剂.烷基二甲基田菜碱中的游离氨含量的测定 |