| 1. | The edta volumetric method for the determination of iron content 容量法测定铁量 |
| 2. | Crude gold - determination of lead content - edta titrimetric method 滴定法测定铅量 |
| 3. | Crude gold - determination of silver content - edta titrimetric method 滴定法测定银量 |
| 4. | Determination of bismuth content - edta complexometric titration 容量法测定铋量 |
| 5. | The edta volumetric method for the determination of calcium content 容量法测定钙量 |
| 6. | The edta volumetric method for the determination of aluminum content 容量法测定铝量 |
| 7. | Determination of aluminium oxide content - edta titrimetric method 滴定法测定氧化铝量 |
| 8. | The edta titrimetric method for the determination of calcium content 滴定法测定钙量 |
| 9. | The edta volumetric method for the determination of aluminium content 容量法测定铝量 |
| 10. | The edta titrimetric method for the determination of aluminium content 滴定法测定铝量 |