• TAPPI T 221 cm-09
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TAPPI T 221 cm-09

  • Drainage Time of Pulp
  • standard by Technical Association of the Pulp and Paper Industry, 01/01/2009
  • Publisher: TAPPI

$25.00$49.00


This method describes a procedure to determine numerically a measure of the slowness of stock, particularly groundwood or beaten pulps. Drainage time is not necessarily related to freeness of pulp, which is determined by TAPPI T 227 "Freeness of Pulp."

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