Research Report RR:D02-1190

    An interlaboratory study was conducted by nine laboratories testing eight samples to establish a precision statement for test method D4422.

    Published: January 1985

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    Related Standards

    D4422-13 Standard Test Method for Ash in Analysis of Petroleum Coke


    Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants


    Subcommittee D02.05 on Properties of Fuels, Petroleum Coke and Carbon Material