Standardization News

Standard Supports Interlaboratory Studies

A revision to an ASTM International standard supports precision and bias testing for test method developers in the petroleum industry. The revisions to D6300 (Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products and Lubricants) will ensure that it remains a valuable tool for interlaboratory testing throughout the world.

D6300 provides guidance for general interlaboratory study design, execution and statistical protocols necessary for test method repeatability and reproducibility.

According to Alex Lau, of TCL Consulting in Ontario, Canada, the latest approved revisions introduce advanced statistical methodology to ensure that the design for an ILS is balanced (providing equal coverage of the complete range of the test method). In addition, a statistically reliable protocol will provide guidance on the minimum design and analysis requirements for interim repeatability-only studies.

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CONTACT Technical Information: Alex T. Lau, TCL Consulting • Whitby, Ontario, Canada • tel +1.905.665.7995 | ASTM Staff: Alyson Fick • tel +1.610.832.9710 | Upcoming Meeting: June 21-25 • Ft. Lauderdale, Fla.

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