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Significance and Use
5.1 The results obtained with a mechanical muller do not necessarily correlate directly with an industrial situation where different dispersing conditions exist. However, dispersion with a mechanical muller is a quick and inexpensive way to prepare specimens for testing the color and strength of a pigment for routine quality control.
5.2 By following the procedure described in , the conditions for achieving the maximum practical degree of dispersion with a mechanical muller may be determined. Any color and strength tests done with the dispersions should be carried out under these conditions.
1.1 This practice is intended to be used to disperse a chromatic pigment for subsequent testing.
1.2 This practice does not apply to white pigments.
Note 1: The dispersion portion of Test Method is similar to this practice, but it utilizes a miniature sandmill rather than a mechanical muller, to disperse the chromatic pigment.
Note 2: The dispersion portions of Test Methods and are similar to this practice, but they are intended for use with white pigments, rather than chromatic pigments.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section .
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D332 Test Method for Relative Tinting Strength of White Pigments by Visual Observation
D2745 Test Method for Relative Tinting Strength of White Pigments by Reflectance Measurements
D3022 Test Method for Color and Strength of Color Pigments by Use of a Miniature Sandmill
E284 Terminology of Appearance
ICS Number Code 87.060.10 (Pigments and extenders)
UNSPSC Code 31211503(Pigment paints)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D7540-09(2019), Standard Practice for Dispersion of Chromatic Pigments with a Mechanical Muller, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top