Consists of groundwood-free unprinted, untreated bleached board cuttings, sheets or rolls, free from wax, greaseproof lamination and adhesives or coatings that are insoluble.

Prohibitive materials none permitted
Outthrows plus prohibitives may not exceed 1%

Connected to:

Semi bleached cuttings
Consists of sheets and cuttings of unprinted, untreated, groundwood-free paper such as file folder stock, untreated milk carton stock, or manila tag.

Prohibitive materials none permitted
Outthrows plus prohibitives may not exceed 2%

EN 643 European system equivalent

Unprinted bleached sulphate board
Unprinted sheets of bleached sulphateboard, without glue, polycoated or waxed materials.

Non-paper components max. 0.25 %
Total unwanted material max. 0.5 %