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ASTM-D1993:2008 Edition

$35.75

D1993-03(2008) Standard Test Method for Precipitated Silica-Surface Area by Multipoint BET Nitrogen Adsorption

Published By Publication Date Number of Pages
ASTM 2008 3
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1.1 This test method covers a procedure which is used to measure the surface area of precipitated hydrated silicas by the conventional Brunauer, Emmett, and Teller (BET) theory of multilayer gas adsorption behavior using multipoint determinations, similar to that used for carbon black in Test Methods D 4820. This test method specifies the sample preparation and treatment, instrument calibrations, required accuracy and precision of experimental data, and calculations of the surface area results from the obtained data.

1.2 This test method is used to determine the nitrogen surface area of precipitated silicas with specific surface areas in the range of 1 to 50 hm 2 /kg (10 to 500 m 2 /g).

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

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 and health practices and determine the applicability of regulatory limitations prior to use. The minimum safety equipment should include protective gloves, sturdy eye and face protection, and means to deal safely with accidental mercury spills.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Significance and Use
Apparatus
2 Reagents
Standard Reference Silicas
Sampling
Sample Preparation Procedure
Measurement Procedure
Calculations
Report
Precision and Bias
3 Keywords
TABLE 1
ASTM-D1993
$35.75