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ASTM E841 Revision 12A, June 1, 2012
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Standard Test Method for Determination of Copper in Iron Ores and Related Materials by Flame Atomic Absorption Spectrometry
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This test method covers the determination of copper in iron ores, concentrates, agglomerates, and related materials in the concentration range from 0.003 % to 1 %.

NOTE 1—As used in this test method (except as related to the term "relative standard deviation", "%" refers to a mass fraction (wt / wt %) (g/100g).

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

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.