Title: Certification of Charpy V-Notch Reference Test Pieces of 120 J Nominal Absorbed Energy - Certified Reference Materials ERM®-FA016bb and ERM®-FA016bc
Publisher: Publications Office of the European Union
Publication Year: 2010
JRC N°: JRC61820
ISBN: 978-92-79-18675-2
ISSN: 1018-5593
Other Identifiers: EUR 24619 EN
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC61820
DOI: 10.2787/33391
Type: EUR - Scientific and Technical Research Reports
Abstract: 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.
JRC Directorate:Health, Consumers and Reference Materials

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