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About This Item

 

Full Description

This practice provides a screening procedure for pulp taken directly from the blow pit or discharged from digesters, eliminating time lapse and assuring uniform screening conditions. This pulp is washed and screened in a flat screen prior to sheet making. The practice directly measures the debris content in chemical, mechanical and recycled pulps. It can also determine flake content, providing a defibering index for the pulp at various repulping stages.
 

Document History

  1. TAPPI T 278 sp-21


    Pulp Screening (Valley-Type Screening Device)

    • Most Recent
  2. TAPPI T 278 sp-17


    Pulp Screening (Valley-Type Screening Device)

    • Historical Version
  3. TAPPI T 278 sp-09


    Pulp Screening (Valley-Type Screening Device)

    • Historical Version
  4. TAPPI T 278 sp-04

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    Pulp Screening (Valley-Type Screening Device)

    • Historical Version
  5. TAPPI T 278


    Pulp Screening (Valley-Type Screening Device)

    • Historical Version