Standard Test Method for Determining Micropore Volume and Zeolite Area of a Catalyst

Importancia y uso:

5.1 This gas adsorption method complements the X-ray procedure of Test Method D3906. This test method will be useful to laboratories that do not have X-ray diffractometers. Each test method can be calibrated by use of an appropriate series of mechanical mixtures to provide what may be termed percent zeolite. If there is disorder in the zeolite, the adsorption method will yield higher values than the X-ray method. The reverse will be true if some zeolite pores (micropores) are blocked or filled.

Subcomité:

D32.01

Referida por:

D4463_D4463M-25, D7206_D7206M-25

Volúmen:

05.06

Número ICS:

71.040.30 (Chemical reagents)

Palabras clave:

catalyst; micropore volume; nitrogen adsorption; t-plot; zeolite; zeolite area;