| Property |
Grade I |
| Alpha cellulose content % by mass |
98.5% Min. |
| Moisture content % by mass |
7% |
| Ash content mineral matter content % by mass |
0.12% Max. |
| Degree of polymerisation(DP) |
900-1300 |
| Viscosity in cps in 0.5% Cuprammonium solution by Shirley Institute Test Method. |
5.7 to 11cps |
| Acidity/Alkalinity |
Nil |
| Iron Content ppm |
15 ppm Max. |
| Matter soluble in 3 % boiling alkali (3% soda solubility) |
2.5% Max. |
| Ether soluble matter (% by mass) |
0.25% Max. |
| Hydrophility(in secs) |
2 Sec Max. |
| Sulphuric Luminosity |
400+/-50 |
| Iso Brightness |
80 Min. |
