In certain applications, the ash, color, conductivity, or pH of the finished activated carbon product may be influenced by the quantity of water solubles it contains. This water solubles test provides a relative indication of the quantity of soluble materials that may be extracted from various activated carbons.

1. Scope

1.1 This test method covers the determination of the water soluble content of (unused) granular and powdered activated carbons. Water solubles are materials that can be extracted by distilled water under reflux conditions and are expressed as a percentage of dry carbon weight.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D1193 Specification for Reagent Water

D2652 Terminology Relating to Activated Carbon

D2867 Test Methods for Moisture in Activated Carbon

D3838 Test Method for pH of Activated Carbon

E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

E300 Practice for Sampling Industrial Chemicals

Keywords

activated carbon; Activated carbon--granular; Dry carbon weight; Residue; Solubles content; Water-soluble-matter content ;

ICS Code

ICS Number Code 71.040.30 (Chemical reagents)

Citing ASTM Standards

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