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ASTM D6915-23

Current Revision

Standard Practice for Carbon Black—Evaluation of Standard Reference Blacks

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1.1 This practice covers guidelines for the production and testing for uniformity of a set of carbon blacks to be used as Standard Reference Blacks (SRBs).

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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.

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.


3.1 This practice is intended to ensure that SRBs are produced and evaluated by a standard procedure.

3.2 This practice is to be used to establish the average physicochemical properties of a set of carbon blacks to be used as SRBs.

3.3 The carbon black grades to be used as SRBs should be selected to give as much coverage of the typical usage range for each test and as nearly evenly spaced across the range as possible. Typically, the carbon black grades selected consist of three tread (hard) type furnace grades (designated A, B, and C), three carcass (soft) type furnace grades (designated D, E, and F), and one thermal type grade (designated G). Subcommittee D24.61 may elect to carry one or more of the existing SRBs into the next set provided there is enough remaining material at the rate of usage to last through the expected life of the next set. Limiting the choice of grades to be used means that not all tests will have an SRB set that is evenly spaced across the range of interest. All the SRB candidates are produced at approximately the same time by the various producers. They are used as a set once they are approved. The sets are consecutively numbered. Values and identification for the current set are given in Guide D4821. Any SRBs carried forward will be renumbered for the new set.

SDO ASTM: ASTM International
Document Number D6915
Publication Date June 1, 2023
Language en - English
Page Count 8
Revision Level 23
Supercedes
Committee D24.61
Publish Date Document Id Type View
June 1, 2023 D6915-23 Revision
May 1, 2017 D6915-17E01 Revision
May 1, 2017 D6915-17 Revision
June 1, 2012 D6915-12 Revision
May 1, 2007 D6915-07 Revision
Dec. 15, 2005 D6915-05B Revision
May 1, 2005 D6915-05A Revision
Jan. 1, 2005 D6915-05 Revision
Nov. 1, 2003 D6915-03A Revision
June 10, 2003 D6915-03 Revision