Reproducibility of the Surface Area of Some Powders as Measured by the Monosorb® Surface-Area Analyzer Using the Brunauer-Emmett-Teller Equation
- 1 November 1979
- journal article
- Published by ASTM International in Journal of Testing and Evaluation
- Vol. 7 (6) , 334-337
- https://doi.org/10.1520/jte11510j
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%.Keywords
This publication has 2 references indexed in Scilit:
- Specific surface area measurements on ceramic powdersPowder Technology, 1977
- Adsorption of Gases in Multimolecular LayersJournal of the American Chemical Society, 1938