ASTM-C1545 › Practice for Dispersing Pigments and Other Materials into Water-Based Suspensions with a High Intensity Mixer
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Scope
1.1 In preparing ceramic glazes and slurries for use, it is often necessary to add pigments to develop a desired fired color, to incorporate viscosity control agents for developing, or providing to develop the desired thickness of the glaze on the ware, to add materials which stabilize the suspension, control bacterial growth, and develop the desired hardness of the glaze on the ware to allow moving and handling before firing. While it is convenient to add these materials to the glaze or slurry in the dry form, it is often possible to use slurries where these materials are dispersed in a slurry and the slurry then added to the liquid glaze. Regardless of the state of the additions (dry or slurry), the dispersion can be done efficiently and effectively by the use of a high intensity mixer (sometimes referred to as a dissolver) and the procedure used is described here.
1.2 The values stated in SI units are to be regarded as the standard.
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
pigments; water-based suspensions; high intensity mixer; ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics)
To find similar documents by ASTM Volume:
15.02 (Glass; Ceramic Whitewares)
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Document Number
ASTM-C1545-02R20
Revision Level
2002 R20 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
Dec. 15, 2020
Document Type
Practice
Committee Number
C21.03