Complaint
| Item | Standard |
| Appearance | White Powder |
| Odor | Odorless |
| Taste | Tasteless |
| Purity % | 98.0 min |
| PH ( 20% suspension): | 8.0-10.0 |
| Bulk density g/cm3 | 0.30-0.38 |
| Moisture @105 degree % | 0.5 max |
| Acid alkalinity as Na2O % | 0.07 max |
| Volatile content in 105 degree % | 0.4 max |
| Iron ( as Fe ) % | 0.20 max |
| Magnesium as Mg % | 0.3max |
| Water absorption ml/15g | 15.0-17.0 |
| White degree | 94 min |
| Set test ( 2 hours/10g ) ml | 17-21 |
| Heavy metals as Pb ppm | 20 max |
| Sulfates % | Nil |
| Lead as Pb ppm | 3 max |
| Arsenic ppm | 3 max |
| Chlorine ppm | 50 max |
| Residue 45 micron screen % | 0.5 |
| Total aerobic cfu/g | 100 max |
| Item | Standard |
| Appearance | White Powder |
| Solubility % | Practically insoluble in water |
| Identification % | shall comply with the approved test |
| Subtances insoluble % | 0.2 max |
| Chloride ppm | 330 max |
| Sulphates % | 0.25 max |
| Arsenic ppm | 4 max |
| Barium % | The burning does not produce green color |
| Heavy metals ppm | 20 max |
| Iron ppm | 200 max |
| Magnesium and Alkali metals % | 1.5 max |
| Loss on drying % | 2.0 |
| Fineness through 45mircon % | 99.9 |
| Assay % | It contain not less than 98.5% and Not more than the equivalent of 100.5% of CaCO3 calculated with Reference to the dried substance |
