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ASTM D1993

Standard Test Method for Precipitated Silica-Surface Area by Multipoint BET Nitrogen Adsorption

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Organization: ASTM
Publication Date: 15 March 1991
Status: inactive
Page Count: 6
ICS Code (Oxides): 71.060.20
scope:

1. Scope

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 multi-point 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 hm2/kg (10 to 500 m2/g).

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 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. The minimum safety equipment should include protective gloves, sturdy eye and face protection, and means to deal safely with accidental mercury spills.

Document History

June 1, 2018
Standard Test Method for Precipitated Silica-Surface Area by Multipoint BET Nitrogen Adsorption
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)2 theory of multilayer gas...
January 10, 2003
Standard Test Method for Precipitated Silica-Surface Area by Multipoint BET Nitrogen Adsorption
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...
January 10, 2003
Standard Test Method for Precipitated Silica-Surface Area by Multipoint BET Nitrogen Adsorption
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)2 theory of multilayer gas...
January 10, 2003
Standard Test Method for Precipitated Silica-Surface Area by Multipoint BET Nitrogen Adsorption
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)2 theory of multilayer gas...
January 10, 2003
Standard Test Method for Precipitated Silica-Surface Area by Multipoint BET Nitrogen Adsorption
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)2 theory of multilayer gas...
ASTM D1993
March 15, 1991
Standard Test Method for Precipitated Silica-Surface Area by Multipoint BET Nitrogen Adsorption
1. Scope 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...
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