Title: Certification of Charpy V-Notch Reference Test Pieces of 150 J nominal absorbed energy, ERM®-FA415u
Publisher: Publications Office of the European Union
Publication Year: 2011
JRC N°: JRC65613
ISBN: 978-92-79-20617-7 (print), 978-92-79-20618-4 (pdf)
ISSN: 1018-5593 (print), 1831-9424 (pdf)
Other Identifiers: EUR 24869 EN
OPOCE LA-NA-24869-EN-C (print), LA-NA-24869-EN-N (pdf)
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC65613
DOI: 10.2787/47594
Type: EUR - Scientific and Technical Research Reports
Abstract: This certification report describes the processing and characterisation of ERM®-FA415u, a batch of Charpy V-notch certified reference test pieces. Sets of five of these test pieces are used for the verification of pendulum impact test machines according to ISO 148-2 (Metallic materials - Charpy pendulum impact test – Part 2: Verification of testing machines ). The certified value for KV (= energy required to break a V-notched test piece using a pendulum impact test machine) and the associated expanded uncertainties (k = 2 corresponding to a confidence level of about 95 %) calculated for the mean of a set of five test pieces aregiven. The absorbed energy (KV) is procedurally defined and refers to the impact energy required to break a V-notched test piece of standardised dimensions, as defined in ISO 148-1. The certified value of ERM®- FA415u is made traceable to the SI, via the SI-traceable certified value of the master batch ERM®-FA415b, by testing samples of ERM®- FA415u and ERM®-FA415b under repeatability conditions on an impact pendulum verified and calibrated with SI-traceably calibrated tools. The certified value is valid only for strikers with a 2 mm tip radius. The certified value is valid at (20 ± )°C.
JRC Directorate:Health, Consumers and Reference Materials

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