• There are no items in your cart

TAPPI T 646 : 2006

Current
Current

The latest, up-to-date edition.

BRIGHTNESS OF CLAY AND OTHER MINERAL PIGMENTS (45/0)
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2011

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 2006
PublisherName
Technical Association of the Pulp & Paper Industry
Status
Current

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

View more information

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.