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Last Updated: Dec 31, 2010
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ASTM D6556-09
Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
D6556-09
ASTM|D6556-09|en-US
Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
Standard
D6556 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption>
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BOS Vol. 09.01 Committee D24
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Significance and Use
This test method is used to measure the total and external surface area of carbon blacks based on multipoint nitrogen adsorption. The NSA measurement is based on the B.E.T. theory and it includes the total surface area, inclusive of micropores, pore diameters less than 2 nm (20 Å). The external surface area, based on the statistical thickness method (STSA), is defined as the specific surface area that is accessible to rubber.
CTAB Surface Area (formerly Test Method D 3765
Scope
1.1 This test method covers the determination of the total surface area by the Brunauer, Emmett, and Teller (B.E.T. NSA) theory of multilayer gas adsorption behavior using multipoint determinations and the external surface area based on the statistical thickness surface area method.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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. (The minimum safety equipment should include protective gloves, sturdy eye and face protection).