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TAPPI T437 om-08
- Dirt in Paper and Paperboard
- standard by Technical Association of the Pulp and Paper Industry, 01/17/2008
- Publisher: TAPPI
$60.00$119.00
This method is suited for the visual estimation of dirt in paper or paperboard in terms of equivalent black area. For dirt in pulp, see TAPPI T 213 "Dirt in Pulp."