ASTM-D4824 2008(Redline)

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D4824-03(2008) Standard Test Method for Determination of Catalyst Acidity by Ammonia Chemisorption (Redline)

Published By	Publication Date	Number of Pages
ASTM	2008	4

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Categories: 71.040.30 - Chemical reagents, ASTM

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Description

Significance and Use

This test method can be used to determine the acidity of catalysts and catalyst carriers by ammonia chemisorption for materials specifications, manufacturing control, and research and development in the evaluation of catalysts.

1. Scope

1.1 This test method covers the determination of acidity of catalysts and catalyst carriers by ammonia chemisorption. A volumetric measuring system is used to obtain the amount of chemisorbed ammonia.

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.

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

D3766 Terminology Relating to Catalysts and Catalysis E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

Keywords

catalysts; nitrogen adsorption; pore size distribution; Acidity, alkalinity, pH–petroleum products; Ammonia test; Catalysts/catalyst carriers; Chemisorption; Nitrogen adsorption; Pore size characteristics/analysis; Sorption capacity/rate; Volumetric measurement; Zeolite catalysts;

ICS Code

ICS Number Code 71.040.30 (Chemical reagents)

DOI: 1

Additional information

Standard Title	D4824-03(2008) Standard Test Method for Determination of Catalyst Acidity by Ammonia Chemisorption (Redline)
Published Code	ASTM
Publication Date	2008
Pages Count	4
ICS Codes	71.040.30 - Chemical reagents

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ASTM-D4824 2008(Redline)

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