1.1 This test method (1, 2, 3) is intended for the numerical estimation of dirt in paper or paperboard in terms of equivalent black area. This test method is satisfactory only for the estimation of visual dirtiness and it may be entirely inadequate when the grittiness or other nonvisual effects of dirt are of importance.
Product Details
- Published:
- 01/01/2002
- Number of Pages:
- 3
- File Size:
- 1 file , 66 KB
