ASTM D4365-95(2008)
Historical Standard: ASTM D4365-95(2008) Standard Test Method for Determining Micropore Volume and Zeolite Area of a Catalyst
SUPERSEDED (see Active link, below)
ASTM D4365
1. Scope
1.1 This test method covers the determination of total surface area and mesopore area. From these results are calculated the zeolite area and micropore volume of a zeolite containing catalyst. The micropore volume is related to the percent zeolite in the catalyst. The zeolite area, a number related to the surface area within the zeolite pores, may also be calculated. Zeolite area, however, is difficult to intepret in physical terms because of the manner in which nitrogen molecules pack within the zeolite.
1.2 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. For a specific precautionary statement, see Note 3.
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
D3906 Test Method for Determination of Relative X-ray Diffraction Intensities of Faujasite-Type Zeolite-Containing Materials
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
catalyst; micropore volume; nitrogen adsorption; t -plot; zeolite; zeolite area;
ICS Code
ICS Number Code 71.040.30 (Chemical reagents)
DOI: 10.1520/D4365-95R08
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