Certification of Charpy V-Notch Reference Test Pieces of 150 J nominal absorbed energy, ERM®-FA415u
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.
LAMBERTY Marie Andree;
DEAN Alan;
ROEBBEN Gert;
2011-08-19
Publications Office of the European Union
JRC65613
978-92-79-20617-7 (print),
978-92-79-20618-4,
1018-5593 (print),
1831-9424,
EUR 24869 EN,
OP LA-NA-24869-EN-C (print),
OP LA-NA-24869-EN-N,
https://publications.jrc.ec.europa.eu/repository/handle/JRC65613,
10.2787/47594 (print),
10.2787/47688,
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