Consists of corrugated containers having liners of either test liner or kraft.

Prohibitive materials may not exceed 1%
Total outthrows may not exceed 5%

EN 643 European system equivalent

Ordinary corrugated board
Used boxes and sheets of corrugated board of various qualities, may include 10 % of other packaging papers and boards.

Non-paper components max. 1.5 %
Total unwanted material max. 2.5 %

 Corrugated board
Used boxes and sheets of corrugated board of various qualities, may include 5 % of other packaging papers and boards.

Non-paper components max. 1.5%
Total unwanted material max. 2.5%