1.1 This test method covers the determination of the activation level of activated carbon. Carbon tetrachloride (CCl₄) activity is defined herein as the ratio (in percent) of the weight of CCl ₄ adsorbed by an activated carbon sample to the weight of the sample, when the carbon is saturated with CCl₄ under conditions listed in this test method.

1.2 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. Specific hazards statements are given in Section 7.