ASTM-D2867

Standard Test Methods for Moisture in Activated Carbon

Applicability: ASTM D2867 is a standard test method for determining the moisture content of activated carbon using two procedures: oven-drying and xylene extraction. The oven-drying method is used when water is the primary volatile, and the carbon is not heat-sensitive, while the xylene extraction method is used for heat-sensitive carbon or when water-immiscible organic compounds are present. These test methods are used in various industries where activated carbon is used, including water treatment, gas purification, and industrial applications.

Purpose: “The primary purpose of ASTM D2867 is to establish standardized procedures for accurately measuring the moisture content of activated carbon. The standard covers two methods:
Oven Drying: Suitable when water is the only volatile material present in significant amounts and the activated carbon is not heat-sensitive.
Xylene Extraction: Used when the activated carbon is known or suspected to be heat-sensitive or contains water-immiscible organic compounds.
Knowing the moisture content is crucial for accurately defining and expressing the properties of activated carbon, especially in relation to its net weight.