ASTM-C866 Standard Test Method for Filtration Rate of Ceramic Whiteware Clays

ASTM-C866 - 2011 R22 EDITION - CURRENT
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Standard Test Method for Filtration Rate of Ceramic Whiteware Clays
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Scope

1.1 This test method covers the determination of the rate at which a layer of clay-water paste is formed from a clay-water slip under pressure filtration. The filtration rate is directly related to such whiteware operations as filter pressing, slip casting, and drying of ware in which water permeability through a clay-water paste is the controlling mechanism.

1.2 A straight-line relationship exists between the time of filter pressing and the square of the thickness of the paste layer. The filtration rate is directly related to the filter press pressure and the void fraction of the paste layer, and is inversely related to the square of the clay surface area, the ratio of solids to liquid in the slip, and the viscosity of water at the testing temperature.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

clay; filtration; ICS Number Code 81.060.10 (Raw materials)

To find similar documents by ASTM Volume:

15.02 (Glass; Ceramic Whitewares)

To find similar documents by classification:

81.060.10 (Raw materials)

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Document Number

ASTM-C0866-11R22

Revision Level

2011 R22 EDITION

Status

Current

Modification Type

Editorially changed

Publication Date

March 4, 2022

Document Type

Test Method

Page Count

2 pages

Committee Number

C21.04