ASTM-C690 Historical Revision Information
Standard Test Method for Particle Size Distribution of Alumina or Quartz by Electric Sensing Zone Technique

ASTM-C690 - 2003 EDITION - SUPERSEDED
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Standard Test Method for Particle Size Distribution of Alumina or Quartz Powders by Electrical Sensing Zone Technique
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Scope

1.1 This test method, one of several found valuable for the measurement of particle size, covers the determination of the particle size distribution of alumina or quartz powders (0.6 to 56.0 m) using electrical sensing zone particle size analyzers. These instruments use an electric current path of small dimensions which is modulated by individual particle passage through an aperture, and produces individual pulses of amplitude proportional to the particle volume.

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 problems, 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.

Significance and Use

This test method is useful to both sellers and purchasers of alumina and quartz powders for determining particle size distributions for materials specifications, manufacturing control, and development and research.

Keywords

alumina; particle size; quartz; sensing zone; 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-C690-03

Revision Level

2003 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

Oct. 1, 2003

Document Type

Test Method

Page Count

4 pages

Committee Number

C21.04