TAPPI T 213 om-21 PDF Download
Standard EN
Dirt in Pulp - Chart Method
Also Known As: TAPPI/ANSI T 213 om-21
SKU141255278
Published by
Technical Association of The Pulp and Paper Industry
TAPPI
Publication Date2021-10-14
Pages CountPages5
Full Description
This method (1,2) is adapted to the numerical estimation of dirt in pulp and recycled pulp in terms of equivalent black area.
The results will differ from those obtained by TAPPI T 246 Foreign Particulate Matter in Pulp by Transmitted Light (now withdrawn) in that it is the contrasting color of foreign matter rather than its opaqueness that affects the result.
An automated procedure for dirt count can be found in TAPPI T 563 Equivalent Black Area (EBA) and Count of Visible Dirt in Pulp, Paper, and Paperboard by Image Analysis. Both this procedure and T 563 are based on Equivalent Black Area (EBA) measurement.
Details
History and complementary documents
History
| Descriptors | Dirt, Equivalent black area, Pulp |
| ICS Codes | 85.040 - Pulps |
| Language(s) | English |
| File Size | 419.8 KB |
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