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About This Item

 

Full Description

This method (1-3) 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.”

 

Document History

  1. TAPPI T 437 om-21

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    Dirt in Paper and Paperboard

    • Most Recent
  2. TAPPI T 437 om-12


    Dirt in Paper and Paperboard

    • Historical Version
  3. TAPPI T437 om-08


    Dirt in Paper and Paperboard

    • Historical Version
  4. TAPPI T437-03


    Dirt in Paper and Paperboard

    • Historical Version
  5. TAPPI T437


    Dirt in Paper and Paperboard

    • Historical Version