ASTM D4780-95(2007)
Historical Standard: ASTM D4780-95(2007) Standard Test Method for Determination of Low Surface Area of Catalysts by Multipoint Krypton Adsorption
SUPERSEDED (see Active link, below)
ASTM D4780
1. Scope
1.1 This test method covers the determination of the specific surface area of catalysts and catalyst carriers in the range from 0.05 to 10 m 2 /g. A volumetric measuring system is used to obtain at least three data points which fall within the linear BET region.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D3663 Test Method for Surface Area of Catalysts and Catalyst Carriers
D3766 Terminology Relating to Catalysts and Catalysis
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
Keywords
catalysts; catalyst carriers; krypton adsorption;
ICS Code
ICS Number Code 71.040.30 (Chemical reagents)
DOI: 10.1520/D4780-95R07
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