SYMPOSIA PAPER Published: 01 January 1950

Testing Multiple Specimens of Stainless Steels in a Modified Boiling Nitric Acid Test Apparatus


When it is desired to use the 65 per cent boiling nitric acid test as an evaluation method on a relatively large number of specimens, as in extensive research investigations or for routine inspection purposes, the amount of acid, apparatus, and laboratory space required frequently imposes a serious limitation on the number of tests that can be run in any reasonable time. This paper describes an apparatus in which a number of specimens can be exposed simultaneously, the use of which will result in appreciable savings in cost, acid, power, and laboratory space.

Author Information

Long, W, B De
Engineering Research Laboratory, Engineering Department, E. I. Du Pont de Nemours and Co., Inc., Wilmington, Del.
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Developed by Committee: A01
Pages: 211–216
DOI: 10.1520/STP43974S
ISBN-EB: 978-0-8031-5911-2
ISBN-13: 978-0-8031-6065-1