| QUICK LIME FOR CHEMICAL INDUSTRIES | | IS: 1540 (Part I) -1980 |
| SL. No. | Characteristic | Requirement | | | Method of Test | |
| | | On Non-Tolatile Basis | | | Ref To CL No. | |
| | | Grade A | Grade B | Grade C | Appendix A | IS : 1514-1959 |
| i) | Available lime, CaO, percent by mass, Min | 92 | 90 | 85 | - | 8 |
| ii) | Acid insoluble matter (as SiO2), percent by mass, Max | 1.0 | 1.5 | 2.0 | - | 9 |
| Iii) | Carbon dioxide (CO2), percent by mass, Max | 2.0 | 2.5 | 3.0 | A-2 | - |
| | (sample taken at the place of manufacture | | | | | |
| iv) | Iron (as Fe2O3), percent by mass, Max | 0.4 | 0.4 | 0.4 | - | 10 |
| v) | Sulphur (as S), percent by mass Max | - | 0.2 | - | A-3 | - |
| vi) | Phosphorus (as P), percent by mass Max | - | 0.01 | - | A-4 | - |
| Vii) | Manganese (as Mn2O3), percent by mass Max | 0.03 | 0.03 | - | A-5 | - |
| Viii) | Alumina (as Al2O3), percent by mass Max | 1.0 | 1.0 | 1.7 | - | 10 |
| ix) | Magnesium (as Mgo), percent by mass, Max | 1.5 | 2.0 | 2.0 | - | 12 |
| x) | Dead burnt lime as (CaO), percent by mass Max | - | 2.0 | 3.0 | - | 14 |
* Methods of sampling and test for quick lime and hydrated lime. | | | | | | |