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Standard Test Method for Determination of Nitrogen Adsorption and Desorption Isotherms of Catalysts and Catalyst Carriers by Static Volumetric Measurements (Includes all amendments And changes 11/3/2020).
Automatically translated name:
Standard Test Method for Determination of Nitrogen Adsorption and Desorption Isotherms of Catalysts and Catalyst Carriers by Static Volumetric Measurements
STANDARD published on 1.4.2015
Designation standards: ASTM D4222-03(2015)e1
Note: WITHDRAWN
Publication date standards: 1.4.2015
SKU: NS-613743
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
Chemical reagentsMeasurement of volume, mass, density, viscosity
Keywords:
adsorption, catalysts, desorption, isotherms, nitrogen gas, volumetric,, ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity), 71.040.30 (Chemical reagents)
Significance and Use | ||||||||||
5.1 The test method has two main functions: first, it provides data useful for establishing the pore size distribution of catalyst materials, which in turn may influence their performance; and second, it serves as a laboratory test which may be used to study porosity changes that may occur during the manufacture and evaluation of catalysts. |
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1. Scope | ||||||||||
1.1 This test method covers the determination of nitrogen adsorption and desorption isotherms of catalysts and catalyst carriers at the boiling point of liquid nitrogen.1.2 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. |
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2. Referenced Documents | ||||||||||
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