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Significance and Use
This test method provides a practical estimate of nonburnable residues in commercially available graphite materials. The ash values determined by this test method are of use in comparing the relative purity of various grades of graphite. To facilitate use, this test method institutes simplifications that preclude the ability to determine absolutely the ash values of the test graphite material due to uncontrolled sources of trace contamination.
This test method is not intended for use in determining the ash content of purified graphites, for example, nuclear materials. The relationship between the mineral content of a graphite sample and the ash content of that sample is unknown and is not determined by the application of this test method.
1.1 This test method provides a practical determination for the ash content in a graphite sample.
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.
C562 Test Method for Moisture in a Graphite Sample
ICS Number Code 71.060.10 (Chemical elements)
UNSPSC Code 11101507(Graphite )
ASTM C561-91(2010)e1, Standard Test Method for Ash in a Graphite Sample, ASTM International, West Conshohocken, PA, 2010, www.astm.orgBack to Top