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Scope

1.1 This test method covers the determination of the specific surface area of aluminas and silicas used in the manufacture of ceramics. The test method is a general one, permitting the use of any modern commercial nitrogen adsorption apparatus but strictly defining the outgassing procedure. Calculations are based on the Brunauer-Emmett-Teller (BET) equation.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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.

Significance and Use

Both sellers and purchasers of alumina and quartz will find the test method useful to determine the specific surface area and indirectly as a measure of the particle size for material specifications, manufacturing control, and research and development.

Keywords

alumina; nitrogen adsorption; particle size; quartz; Adsorption; Alumina; Gases; Nitrogen adsorption surface area; Quartz powder; Silica content; Specific surface area; Surface analysis; 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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