Reproducibility of the Surface Area of Some Powders as Measured by the Monosorb® Surface-Area Analyzer Using the Brunauer-Emmett-Teller Equation

    Volume 7, Issue 6 (November 1979)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 4


    Ace, HL
    Senior technician and head, Physical Testingmember of ASTM, GTE Sylvania, Towanada, Pa.

    Parsons, DS
    Senior technician and head, Physical Testingmember of ASTM, GTE Sylvania, Towanada, Pa.

    Abstract

    The precision of the measurement of the specific surface area of powders was studied for 15 different materials. Measurements were obtained in such a way that both instrument and sampling contributions to the total errors could be estimated. The overall coefficient of variation was 6.5%. The instrument reproducibility was 2.7%. The total reproducibility of free-flowing powders was 4.2%, but for non-free-flowing powders, which are hard to sample, the total reproducibility was 8.5%.


    Paper ID: JTE11510J

    DOI: 10.1520/JTE11510J

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    Title Reproducibility of the Surface Area of Some Powders as Measured by the Monosorb® Surface-Area Analyzer Using the Brunauer-Emmett-Teller Equation
    Symposium , 0000-00-00
    Committee B09