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TAPPI T 437 PDF
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Dirt in Paper and Paperboard
| Published by | Publication Date | Number of Pages |
| TAPPI | 01/01/2021 | 7 |
TAPPI T 437 – Dirt in Paper and Paperboard
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.”
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