| 1. | Health standard for cyclonite in the of workplace
车间空气中三次甲基三硝基胺 |
| 2. | The methylene blue photometric method for determination of sulphur
次甲基蓝光度法测定硫 |
| 3. | Chemical reagent . hexamethylene - tetramine
化学试剂六次甲基四胺 |
| 4. | Hexamethylenetetramine for industrial use
工业六次甲基四胺 |
| 5. | The methylene blue photometric method for the determination of sulfur content
次甲基蓝光度法测定硫量 |
| 6. | Determination of boron content - extraction - methylene blue spectrophotometric method
次甲基蓝萃取分光光度法测定硼量 |
| 7. | The reducing distillation - methylene blue photometric method for the determination of sulfur content
次甲基蓝光度法测定硫量 |
| 8. | Tests for geometrical properties of aggregates . part 9 : assessment of fines . methylene blue test
集料几何特性试验.第9部分:细集料评估.次甲基蓝试验 |
| 9. | Methods for chemical analysis of ferroniobium - the methylene blue photometric method for the determination of sulfur content
铌铁化学分析方法次甲基蓝光度法测定硫量 |
| 10. | Chemical analysis of zirconium powder for electro - vacuum uses - the methylene blue photometric method for determination of sulphur
电真空用锆粉化学分析方法次甲基蓝光度法测定硫 |
