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TAPPI T 213 om-10
- Dirt in Pulp - Chart Method
- standard by Technical Association of the Pulp and Paper Industry, 10/01/2010
- Publisher: TAPPI
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This method (1, 2) is adapted to the numerical estimation of dirt in pulp and recycled pulps in terms of equivalent black area.The results will differ from those obtained by TAPPI T 246 Foreign Particulate Matter in Pulp by Transmitted Light in that it is the contrasting color of foreign matter rather than its opaqueness that affects the result.