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ASTM D6647-26

Standard Test Method for Determination of Acid Soluble Iron via Atomic Absorption
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ASTM D6647-26

Standard Test Method for Determination of Acid Soluble Iron via Atomic Absorption

PUBLISH DATE 2026
PAGES 4
ASTM D6647-26

1.1 This test method covers the determination of acid-soluble iron content in granular and powdered activated carbons using suitable analytical equipment. This test method involves extracting the iron with hydrochloric acid and quantifying it through analytical techniques appropriate for the selected equipment. This test method does not determine the total iron concentration of a sample.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Section 8.

1.3 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.

5.1 This test method is significant for applications where iron leaching may affect product quality, such as in food, chemical purification, or decolorization processes.

5.2 Users should validate equipment performance, ensuring no interferences from other sample matrix components.

5.3 Ensure materials in contact with the sample or solutions (for example, glass, ceramics, or plastic) do not introduce iron contamination.

SDO ASTM: ASTM International
Document Number D6647
Publication Date March 1, 2026
Language en - English
Page Count 4
Revision Level 26
Supercedes
Committee D28.02
Publish Date Document Id Type View
March 1, 2026 D6647-26 Revision
Oct. 1, 2024 D6647-18R24 Revision
May 1, 2018 D6647-18 Revision
Sept. 1, 2011 D6647-01R11 Revision
Oct. 1, 2006 D6647-01R06 Revision
April 10, 2001 D6647-01 Revision