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TAPPI T 568 : 2012

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

PHYSICAL AREA OF SUB-VISIBLE CONTRARIES IN PULP, PAPER AND PAPERBOARD BY IMAGE ANALYSIS
Available format(s)

Hardcopy , PDF

Superseded date

11-07-2023

Language(s)

English

Published date

01-01-2012

1. Introduction
2. Scope
3. Significance
4. Related documents
5. Definitions
6. Apparatus
7. Sampling and test specimens
8. Procedure
9. Report
10. Precision
11. Keywords
12. Additional information
Literature cited
References
Appendix A.1
Appendix A.2

Defines image analysis to determine the level of sub-visible contraries in pulp, recycled pulp, paper, and paperboard in terms of Equivalent Physical Diameter (EPD) of contraries within the EPD range of 8 micrometers to 160 micrometers, reported in parts per hundred as well as the number of specks per square centimeter of sample.

DocumentType
Official Test Method
Pages
6
PublisherName
Technical Association of the Pulp & Paper Industry
Status
Superseded
SupersededBy

TAPPI/ANSI T 272 sp:2012 FORMING HANDSHEETS FOR REFLECTANCE TESTING OF PULP (SHEET MACHINE PROCEDURE)
TAPPI T 442 : 0 SPECTRAL REFLECTANCE FACTOR, TRANSMITTANCE, AND COLOR OF PAPER AND PULP (POLYCHROMATIC ILLUMINATION)
TAPPI T 563 : 2015 EQUIVALENT BLACK AREA (EBA) AND COUNT OF VISIBLE DIRT IN PULP, PAPER AND PAPERBOARD BY IMAGE ANALYSIS
TAPPI T 400 : 2011 SAMPLING AND ACCEPTING A SINGLE LOT OF PAPER, PAPERBOARD, CONTAINERBOARD, OR RELATED PRODUCT
TAPPI T 452 : 2008 BRIGHTNESS OF PULP, PAPER AND PAPERBOARD (DIRECTIONAL REFLECTANCE AT 457 NM)

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$80.21
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