">
 
                        School Book publications, Annual Reports, Journals, Diaries, Leaflets / mailers etc.
| Properties | Unit | 50/52gsm | 54/55gsm | 57/58gsm | 60gsm | 64gsm | 68/70gsm | 80gsm | 90gsm | 100gsm | 110/120gsm* | Tolerence | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Substance | gsm | 50/52 | 54/55 | 57/58 | 60 | 64 | 68/70 | 80 | 90 | 100 | 110/120 | AVG±2.5% | 
| Bulk | cc/g | 1.35 | 1.35 | 1.35 | 1.35 | 1.32 | 1.30 | 1.28 | 1.25 | 1.20 | 1.18 | Min. | 
| Brightness, ISO | % | 92 | 92 | 92 | 92 | 92 | 92 | 92 | 92 | 92 | 92 | Min. | 
| Whiteness, CIE | % | 130 | 130 | 130 | 130 | 130 | 130 | 130 | 130 | 130 | 130 | Min. | 
| Opacity, ISO | % | 84 | 86 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 94 | Min. | 
| Bendtsen Smoothness (T) | ml/min | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | Max. | 
| Bendtsen Smoothness (B) | ml/min | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | Max. | 
| Gurley Porosity | s/100ml | 15 | 15 | 15 | 15 | 15 | 15 | 20 | 20 | 20 | 20 | Min. | 
| Wax Pick | No | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 12 | 12 | Min. | 
| Cobb-60 | gsm | 25 | 25 | 25 | 25 | 30 | 30 | 30 | 30 | 30 | 30 | Max. | 
| Breaking Length-MD | meter | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 3800 | 3800 | 3800 | Min. | 
| Breaking Length-CD | meter | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | Min. |