Standard Active Last Updated: Jun 13, 2024 Track Document
ASTM D8371-24

Standard Test Method for Trace Metal Content Analysis in Carbon Black

Standard Test Method for Trace Metal Content Analysis in Carbon Black D8371-24 ASTM|D8371-24|en-US Standard Test Method for Trace Metal Content Analysis in Carbon Black Standard new BOS Vol. 09.01 Committee D24
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Significance and Use

5.1 This test covers the quantitation of trace metals in carbon black. The quantitation of heavy metals may help to estimate their contribution to a final finished article. Metal components may impact application properties of final products or may be a regulatory issue. It is the responsibility of the user of the material to consider the impact of the elements when designing a final product.

5.2 Elements which cannot be digested with nitric acid, such as silicon, cannot be quantified by this test method. This standard describes two digestion methods; microwave acid digestion and furnace ashing. The furnace ashing method may not be appropriate for certain more volatile elements which can be lost during incineration.


1.1 This test method covers the determination of metal content in carbon black with ICP-OES or ICP-MS after adequate digestion. See 3.1.5 – 3.1.7 for definitions.

1.2 The concentration ranges covered by these test methods are determined by the sensitivity of the instruments, the amount of sample taken for analysis and the dilution volume.

1.3 Detection limits, sensitivity and optimum ranges of the metals will vary with the matrices and model of spectrometer.

1.4 Elements present at concentrations above the linear response range of the calibration curve can be determined with additional appropriate dilutions.

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

1.6 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.

1.7 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.

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Book of Standards Volume: 09.01
Developed by Subcommittee: D24.66
Pages: 4
DOI: 10.1520/D8371-24
ICS Code: 83.040.20