Consists of uncoated, printed or unprinted sheets, shavings, guillotined books, and cuttings of white groundwood-free ledger, bond, writing, and other paper which has similar fiber and filler content.

Prohibitive materials may not exceed ½ of 1%
Outthrows plus prohibitives may not exceed 2%

EN 643 European system equivalent

White wood-free letters
Sorted uncoated white wood-free printing and writing papers, printed, free from cash books, carbon paper and non-water soluble adhesives. May contain 5 % mechanical pulp-based paper.

Non-paper components max. 0.5 %
Total unwanted material max. 1 %

White wood-free letters unprinted
Sorted uncoated white wood-free printing and writing papers, unprinted, free from carbon paper, carbonless paper (NCR) and non-water soluble adhesives.

Non-paper components max. 0.5 %
Total unwanted material max. 1