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PUBLICATIONS

Second Charpy Interlaboratory Comparison Between NIST and Anand Testing Machine Services

Published

Author(s)

Enrico Lucon, Allen Eckhardt, Raymond L. Santoyo

Abstract

We report the results of the second Charpy Interlaboratory Comparison between NIST (National Institute of Standards and Technology, Boulder, Colorado, USA) and ATMS (Anand Testing Machine Services, Kabnur, India). The first comparison was run in 2022, and was described in NIST Technical Report 2243. Both studies involved testing in both locations Charpy reference specimens, certified and produced by both Institutes at different levels of absorbed energy. Test results obtained at NIST and ATMS were compared using the same machine configuration (C-type hammer) and striker type (2 mm), and statistical methods (unpaired two-sample t-test) were employed to assess the significance of interlaboratory differences.
Citation
Technical Note (NIST TN) - 2301
Report Number
2301
NIST Pub Series
Technical Note (NIST TN)
Pub Type
NIST Pubs

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Keywords

Absorbed energy, certified Charpy reference specimens, Interlaboratory Comparison, unpaired two-sample t-test.
Standards, Metals and Materials

Citation

Lucon, E. , Eckhardt, A. and Santoyo, R. (2024), Second Charpy Interlaboratory Comparison Between NIST and Anand Testing Machine Services, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=958353 (Accessed October 9, 2025)

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Created August 22, 2024
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