Certification of Charpy V-Notch Reference Test Pieces of 120 J Nominal Absorbed Energy - Certified Reference Materials ERM®-FA016bb and ERM®-FA016bc
This certification report describes the processing and characterisation of ERM®-FA016bb and ERM®-FA016bc, two batches 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 EN 10045-2 (Charpy impact test on metallic materials, Part 2. Method for the verification of impact testing machines [1]) or according to ISO 148-2 (Metallic materials - Charpy pendulum impact test ¿ Part 2: Verification of test machines [2]).
The certified values 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, are:
The absorbed energy (KV) is procedurally defined and refers to the impact energy required to break a V-notched bar of standardised dimensions, as defined in EN 10045-1 [3] and ISO 148-1 [4]. The certified values of ERM®- FA016bb and ERM®-FA016bc are traceable to the SI, via the SI-traceable certified value of the master batch ERM®-FA016ax, by testing samples of ERM®- FA016bb and ERM®-FA016bc and ERM®-FA016ax under repeatability conditions on an impact pendulum verified and calibrated with SI-traceably calibrated tools. The certified values are valid only for strikers with a 2 mm tip radius. The certified values are valid at (20 ± 2) °C.
LAMBERTY Marie Andree;
DEAN Alan;
ROEBBEN Gert;
2010-12-13
Publications Office of the European Union
JRC61820
978-92-79-18675-2,
1018-5593,
EUR 24619 EN,
OP LA-NA-24619-EN-C,
https://publications.jrc.ec.europa.eu/repository/handle/JRC61820,
10.2787/33391,
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