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American Industrial Hygiene Association Journal Volume 24, 1963 - Issue 5
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Original Articles

A Technique for Construction of Predictable Low-Capacity Critical Orifices

M. Corn Ph.D. Department of Public Health Practice, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
&
W. Bell Department of Public Health Practice, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania; With Hemeon Associates, Pittsburgh, 13, Pennsylvania
Pages 502-504 | Published online: 27 Dec 2007
 

Abstract

A rapid, inexpensive technique is described which utilizes stainless steel hypodermic needles as low capacity critical orifices. A range of needle sizes is available and manufacturers' quality controls ensure reproducible results.

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