Research Report RR:D31-1013

    Research Report D31-1013 presents the results of the Interlaboratory Study used to establish the precision and bias statement for ASTM D7674, Standard Test Method for Hexane/Petroleum Ether Extract in Wet Blue and Wet White. The collaborative study included 7 labs who used method D7674 to analyze wet blue samples using both hexane and petroleum ether as the extraction solvents. Samples were prepared under two condition: As received in wet state, diced; Oven-dried at two different temperatures, or air-dried, ground. Each lab submitted two replicate test results at each condition for the test portions analyzed. The research report presents summary method performance statistics as well as the measurement data used to calculate results for the study.

    Published: November 2010

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    Related Standards

    D7674-14a Standard Test Method for Hexane/Petroleum Ether Extract in Wet Blue and Wet White


    Committee D31 on Leather


    Subcommittee D31.02 on Wet Blue