SYMPOSIA PAPER Published: 01 January 1995
STP14664S

Proposed Changes to Charpy V-Notch Machine Certification Requirements

Source

In 1989 the administration of the Charpy V-Notch Certification Program was assumed by the National Institute of Standards and Technology. The United States Army originated the program to insure the measurement integrity of Charpy V-notch machines across the country. The program has been operated for many years using candidate machine acceptance limits which can possibly be traced to a 1955 paper by Driscoll, however, the original statistical justification for using these acceptance criteria has been lost or never existed. A statistical analysis of recent certification program data indicates that the existing candidate machine acceptance limits should be modified. In this paper, we will discuss and justify potential changes to candidate machine acceptance limits.

Author Information

Splett, JD
Computing and Applied Mathematics Laboratory, National Institute of Standards and Technology, Boulder, CO
Wang, JC-M
Computing and Applied Mathematics Laboratory, National Institute of Standards and Technology, Boulder, CO
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Developed by Committee: E28
Pages: 182–194
DOI: 10.1520/STP14664S
ISBN-EB: 978-0-8031-5307-3
ISBN-13: 978-0-8031-2018-1