Item No. | Test Item | Standard Specification | Test Specification |
1 | Appearance | A light, cream or buff, very fine powder, free or almost free from gritty particles | Complies |
2 | Absorption Capacity | The intensity of the 0.12% sample solution does not exceed 0.0012% of methylene blue standard solution | ≤0.0012% |
3 | Alkalinity | 7-9.50 | 8.2 |
4 | Arsenic | ≤ 8.0PPM | 5 PPM |
5 | Heavy metal | ≤ 20.0 PPM | 16 PPM |
6 | Acid Soluble Matters | ≤ 0.25 mg | 0.11 mg |
7 | Water Soluble Matters | ≤ 50.0 mg | 12.3 mg |
8 | Loss on Drying (105 C) | ≤ 4.00% | 0.5% |
9 | Loss on Ignition | ≤ 9.0 | 6.11 |
10 | Identifications | ||
11 | (A) | Positive | Positive |
(B) | Positive | Positive | |
(C) | Positive | Positive | |
12 | Particle size |
| Confirms |
Item No. | Test Item | Standard Specification | Test Specification |
1 | Appearance | A light, cream or buff, very fine powder, free or almost free from gritty particles | Complies |
2 | Absorption Capacity | The intensity of the 0.12% sample solution does not exceed 0.0012% of methylene blue standard solution | ≤0.0012% |
3 | Alkalinity | 7-9.50 | 8.2 |
4 | Arsenic | ≤ 8.0PPM | 5 PPM |
5 | Heavy metal | ≤ 20.0 PPM | 16 PPM |
6 | Acid Soluble Matters | ≤ 0.25 mg | 0.11 mg |
7 | Water Soluble Matters | ≤ 50.0 mg | 12.3 mg |
8 | Loss on Drying (105 C) | ≤ 4.00% | 0.5% |
9 | Loss on Ignition | ≤ 9.0 | 6.11 |
10 | Identifications | ||
11 | (A) | Positive | Positive |
(B) | Positive | Positive | |
(C) | Positive | Positive | |
12 | Particle size |
| Confirms |
