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ASTM D 1993 : 1991 : R1997

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Superseded by

ASTM D 1993 : 2003

Language(s)

English

Published date

10-05-1997

€67.30
Excluding VAT

Committee
D 11
DocumentType
Test Method
Pages
6
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

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 D4820. 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 /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 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.

ASTM C 1274 : 2012 Standard Test Method for Advanced Ceramic Specific Surface Area by Physical Adsorption
ASTM D 5604 : 1996 : R2017 Standard Test Methods for Precipitated Silica—Surface Area by Single Point B.E.T. Nitrogen Adsorption
ASTM D 5900 : 2017 : EDT 1 Standard Specification for Physical and Chemical Properties of Industry Reference Materials (IRM)

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