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ASTM D3838-23

Current Revision

Standard Test Method for pH of Activated Carbon

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1.1 This test method covers determination of the pH of a water extract of activated carbon.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 6.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


4.1 When a fluid containing an adsorbate is passed through a bed of activated carbon, chemical reactions may take place between the activated carbon, its other noncarbonaceous constituents, and the adsorbate-containing fluid. The pH of the carbon may be a significant parameter of such a reaction and therefore may be an important characteristic of the carbon.

SDO ASTM: ASTM International
Document Number D3838
Publication Date Dec. 1, 2023
Language en - English
Page Count 3
Revision Level 23
Supercedes
Committee D28.02
Publish Date Document Id Type View
Dec. 1, 2023 D3838-23 Revision
April 1, 2005 D3838-05 Revision
March 1, 2017 D3838-05R17 Reaffirmation
March 1, 2011 D3838-05R11 Reaffirmation
April 10, 1999 D3838-80R99 Reaffirmation