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ASTM D1366-86(2019)

Current Reaffirmation

Standard Practice for Reporting Particle Size Characteristics of Pigments

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1.1 This practice for reporting the fineness characteristics of pigments is designed to apply in most cases where well-known methods for determining these particle size characteristics in the subsieve range are employed, such as microscopic, sedimentation, and turbidimetric methods; and partially to absorption and permeability methods.

1.2 Laminar, plate-like pigments and composite pigments having a definite bimodal distribution are not considered within the scope of this practice.

1.3 Parameters—The fineness characteristics are reported in the following three parameters:

1.3.1 Particle Size Parameter.

1.3.2 Coarseness Parameter—A parameter descriptive of the coarseness character of the pigment, making use of a limiting value in the subsieve range similar to that used in the sieve ranges.

1.3.3 Dispersion Parameter—A parameter descriptive of the uniformity of the particle size distribution.

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.

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.


4.1 This practice is of value (1) to the producer of fine particles as a means of reporting particle characteristics with respect to quality control and (2) to the buyer to assure that the particle size and particle size distribution meet his requirements.

SDO ASTM: ASTM International
Document Number D1366
Publication Date Oct. 1, 2019
Language en - English
Page Count 4
Revision Level 86(2019)
Supercedes
Committee D01.31
Publish Date Document Id Type View
Oct. 1, 2019 D1366-86R19 Reaffirmation
Nov. 1, 2012 D1366-86R12 Reaffirmation
Nov. 1, 2007 D1366-86R07 Reaffirmation
May 10, 2003 D1366-86R03 Reaffirmation
Nov. 10, 1997 D1366-86R97 Reaffirmation