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ASTM D4222-98
Standard Test Method for Determination of Nitrogen Adsorption and Desorption Isotherms of Catalysts By Static Volumetric Measurements
STANDARD published on 10.3.1998
The information about the standard:
Designation standards: ASTM D4222-98
Note: WITHDRAWN
Publication date standards: 10.3.1998
SKU: NS-26484
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM D4222-98 :
Keywords:
adsorption, catalysts, desorption, isotherms, nitrogen gas, volumetric, ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity),71.040.30 (Chemical reagents)
Additional information
| 1. Scope | ||||||||||
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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. A static volumetric measuring system is used to obtain about thirty equilibrium adsorption points on each branch of the isotherm, these points being evenly spread over the isotherm. 1.2 This standard does not purport to address all of the safety problems, 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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