ANSI Z39.48-1984 Compared with Two Standards Now Being Drafted

7.5 min.

7.5-10.0; 7.0 min. for base paper if coated

7.5-10.0 for each layer of the paper

2%

2%

2%

No groundwood or unbleached pulp

-

<50 g mechanical pulp/kg fiber

-

7.5% max. (Kappa # <50)

Kappa<5.0

30 (@ 1 kg) MIT

-

-

40 g for papers 74 g/m² (about 20 lb bond)

Tear index of 5.25 mNm²/g; 3.5 mNm²/g for coated

350 mN for papers >70 g/m²; for lighter papers a formula gives tear index