Standard Test Method for Determination of Butane Activity of Activated Carbon

Importancia y uso:

5.1 The butane activity as determined by this test method is a measure of the ability of an activated carbon to adsorb butane from dry air under specified conditions. It is useful for the quality control and evaluation of granular activated carbons. The butane activity is an indication of the micropore volume of the activated carbon sample. This activity number does not necessarily provide an absolute or relative measure of the effectiveness of the tested carbon for other adsorbates or at other conditions of operation.

5.2 The butane activity test can be used as a non-ozone depleting substitute for the carbon tetrachloride activity test in Test Method D3467. Fig. 1 shows an experimental correlation of activity values obtained using the two adsorbates.

FIG. 1 Butane Versus Carbon Tetrachloride Correlation

Note 1: This test has not been designed for use with powdered activated carbon, but it has been used successfully when the flow rate or time are adjusted or the sample volume is decreased to keep the pressure drop at an acceptable value.

Subcomité:

D28.04

Referida por:

D3467-04R20, D3467-04R20

Volúmen:

15.01

Número ICS:

71.040.30 (Chemical reagents)

Palabras clave:

activated carbon;