TAPPI T 646 : 2006 : R2011
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Brightness of clay and other mineral pigments (45/0)
Hardcopy , PDF
English
01-01-2011
21-03-2025
1 Scope
2 Summary
3 Significance
4 Definitions
5 Apparatus
6 Calibration
7 Sampling and preparation of test specimens
8 Measurement
9 Report
10 Precision
11 Keywords
12 Additional information
Appendix A: Preparation of kaolin clay powder
plaques for reflectometry
Appendix B: Preparation of calcined kaolin
powder plaques for reflectometry
Appendix C: Preparation of CACO[3] plaques for
reflectometry
Appendix D: Preparation of TiO[2] plaques for
reflectometry
Appendix E: Preparation of alumina trihydrate
plaques for reflectometry
Appendix F: Preparation of structured pigment
plaques for reflectometry
Appendix G: Preparation of other pigment for
reflectometry
References
Specifies a procedure for determining the brightness of clay or other mineral pigment that has been pulverized under controlled conditions and made into a uniformly compacted pigment plaque.
| DevelopmentNote |
Supersedes TAPPI 672 (01/2001)
|
| DocumentType |
Official Test Method
|
| Pages |
9
|
| ProductNote |
Reconfirmed 2011
|
| PublisherName |
Technical Association of the Pulp & Paper Industry
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| TAPPI T 534 : 2009 | BRIGHTNESS OF CLAY AND OTHER MINERAL PIGMENTS (D/0 DIFFUSE) |
| TAPPI T 657 : 2012 | SAMPLING OF FILLERS AND PIGMENTS |
| TAPPI T 452 : 2008 | BRIGHTNESS OF PULP, PAPER AND PAPERBOARD (DIRECTIONAL REFLECTANCE AT 457 NM) |
| TAPPI T 1200 : 2014 | INTERLABORATORY EVALUATION OF TEST METHODS TO DETERMINE TAPPI REPEATABILITY AND REPRODUCIBILITY |
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