• TAPPI T 437 om-12
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TAPPI T 437 om-12

  • Dirt in Paper and Paperboard
  • standard by Technical Association of the Pulp and Paper Industry, 11/01/2012
  • Publisher: TAPPI

$25.00$49.00


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.

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