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ASTM D3663-25
Standard Test Method for Surface Area of Catalysts and Catalyst Carriers
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STANDARD published on 1.9.2025
The information about the standard:
Designation standards: ASTM D3663-25
Publication date standards: 1.9.2025
SKU: NS-1240612
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM D3663-25 :
This test method establishes the standard procedure for determining the surface areas of catalyst and catalyst carriers that have Type II or IV nitrogen adsorption isotherms, and specified minimum area. A volumetric measuring system is used to obtain at least four data points which fit on the linear BET line. The surface area of a catalyst or catalyst carrier is determined by measuring the volume of nitrogen gas adsorbed at various low-pressure levels by the catalyst sample. Pressure differentials caused by introducing the catalyst surface area to a fixed volume of nitrogen in the test apparatus are measured and used to calculate BET surface area.
Keywords:
catalyst, nitrogen adsorption, surface area,, ICS Number Code 71.040.30 (Chemical reagents)
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