Powder flowability test equipment

Details Powder flowability test equipment Powder flowability test equipment

1979-08-06

1981-06-23

Swisher, S. Clement

Measuring and testing

Miscellaneous

G01N 1104

Patent

active

042742862

ABSTRACT:
An apparatus for measuring the flowability of powder utilizes a container having a bottom wall with an opening therein. The bottom wall may be changed to provide openings of different sizes. The test consists of allowing the powder to flow through successively smaller holes. The smallest hole size through which the powder will freely flow is a measure of its flowability.

REFERENCES:
patent: 3376753 (1968-04-01), Pitkin et al.
Ausberger et al., J. Pharm. Sci. 55, No. 4, 418-422, (1966).
Nelson, J. Am. Pharm. Asso. Sci. Ed. 44, No. 7, 435-437, (1955).
Train, J. Pharm. Pharnol. 10, 127T-135T, (1958).
Hammerness et al., J. Am. Pharm. Asso. Sci. Ed. 47, No. 1, 58-61, (1955).
Gold et al., J. Pharm. Sci. 55, Noll 1291-1292, (1966) and No. 10, 1133-1136, (1966).
Degrussa, Technical Bulletin No. 31.
Shangraw, Pre-Conference Study Guide for Fifth Annual Educational Conference for Industrial Pharmacists.

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