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ASTM D 4222 : 2003 : R2015 : EDT 1

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Determination of Nitrogen Adsorption and Desorption Isotherms of Catalysts and Catalyst Carriers by Static Volumetric Measurements
Available format(s)

Hardcopy , PDF

Superseded date

11-03-2020

Language(s)

English

Published date

08-20-2015

This test method covers the determination of nitrogen adsorption and desorption isotherms of catalysts and catalyst carriers at the boiling point of liquid nitrogen.

1.1This test method covers the determination of nitrogen adsorption and desorption isotherms of catalysts and catalyst carriers at the boiling point of liquid nitrogen.2 A static volumetric measuring system is used to obtain sufficient equilibrium adsorption points on each branch of the isotherm to adequately define the adsorption and desorption branches of the isotherm. Thirty points evenly spread over the isotherm is considered to be the minimum number of points that will adequately define the isotherm.

1.2The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3This 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.

Committee
D 32
DocumentType
Test Method
Pages
6
ProductNote
Reconfirmed EDT 1
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 4641 : 2017 Standard Practice for Calculation of Pore Size Distributions of Catalysts and Catalyst Carriers from Nitrogen Desorption Isotherms

ASTM E 177 : 2014 : REDLINE Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM D 3766 : 2008 Standard Terminology Relating to Catalysts and Catalysis
ASTM D 3766 : 2008 : R2018 Standard Terminology Relating to Catalysts and Catalysis
ASTM D 3663 : 2003 : R2008 Standard Test Method for Surface Area of Catalysts and Catalyst Carriers
ASTM D 3766 : 1986 : R2002 Standard Terminology Relating to Catalysts and Catalysis
ASTM D 3766 : 2008 : R2013 Standard Terminology Relating to Catalysts and Catalysis
ASTM D 3663 : 2003 : R2015 Standard Test Method for Surface Area of Catalysts and Catalyst Carriers
ASTM D 3663 : 1999 Standard Test Method for Surface Area of Catalysts and Catalyst Carriers
ASTM D 3663 : 2003 Standard Test Method for Surface Area of Catalysts and Catalyst Carriers
ASTM D 3766 : 1986 : R1997 Standard Terminology Relating to Catalysts and Catalysis
ASTM D 3766 : 1986 : R2007 Standard Terminology Relating to Catalysts and Catalysis

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