TAPPI/ANSI T 646 om:2006(R2022)
Current
The latest, up-to-date edition.
Brightness of clay and other mineral pigments (45/0)
Hardcopy , PDF
English
12-05-2022
This method provides: (a) a scale for the measurement of the brightness of clay and mineral pigments using 45/0 geometry, (b) a method for verifying the calibration of each instrument used for brightness testing, (c) procedures for the preparation of specimens from both dry powder or aqueous slurry including procedural variations for several specific clays and mineral pigments.
| DocumentType |
Official Test Method
|
| Pages |
9
|
| PublisherName |
Technical Association of the Pulp & Paper Industry
|
| Status |
Current
|
| Supersedes |
This method describes 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.
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