ASTM-D4365 2019

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D4365-19 Standard Test Method for Determining Micropore Volume and Zeolite Area of a Catalyst

Published By	Publication Date	Number of Pages
ASTM	2019	6

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Categories: 71.040.30 - Chemical reagents, ASTM

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Description

ASTM D4365-19

Active Standard: Standard Test Method for Determining Micropore Volume and Zeolite Area of a Catalyst

ASTM D4365

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 interpret in physical terms because of the manner in which nitrogen molecules pack within the zeolite.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific precautionary statement, see Note 3.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

catalyst; micropore volume; nitrogen adsorption; t-plot; zeolite; zeolite area;

ICS Code

ICS Number Code 71.040.30 (Chemical reagents)

DOI: 10.1520/D4365-19

Additional information

Standard Title	D4365-19 Standard Test Method for Determining Micropore Volume and Zeolite Area of a Catalyst
Published Code	ASTM
Publication Date	2019
Pages Count	6
ICS Codes	71.040.30 - Chemical reagents