Journal Published Online: 01 November 1979
Volume 7, Issue 6

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



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%.

Author Information

Ace, HL
GTE Sylvania, Towanada, Pa.
Parsons, DS
GTE Sylvania, Towanada, Pa.
Pages: 4
Price: $25.00
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Stock #: JTE11510J
ISSN: 0090-3973
DOI: 10.1520/JTE11510J