| 1 | Boron (as B),minimum | 17.0% |
| 2 | Matter insoluble in water,maximum | 1.0% |
| 3 | Lead (as Pb),maximum | 0.003% |
| 1 | Content of boron (as B),minimum | 10.5% |
| 2 | Matter insoluble in water,maximum | 1.0% |
| 3 | pH | 9.0-9.5 |
| 4 | Lead (as Pb),maximum | 0.003% |
| 1 | Boron (as B),minimum | 20.0% |
| 2 | Matter insoluble in water,maximum | 1.0% |
| 3 | Lead (as Pb),maximum | 0.003% |
| 1 | Boron (as B),minimum | 15.0% |
| 2 | Matter insoluble in water,maximum | 1.0% |
| 3 | Lead (as Pb),maximum | 0.003% |
| 4 | Arsenic (as As),maximum | 0.01% |
| 5 | Particle size- Not less than 95% of the material shall pass through 5 mm IS sieve and be retained on 1.4 mm IS sieve. |