Title: Certification of Charpy V-Notch Reference Test Pieces of 60 J Nominal Absorbed Energy - Certified Reference Material ERM®-FA014q
Publisher: Publications Office of the European Union
Publication Year: 2010
JRC N°: JRC58889
ISBN: 978-92-79-07561-2
ISSN: 1018-5593
Other Identifiers: EUR 24407 EN
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC58889
DOI: 10.2787/26083
Type: EUR - Scientific and Technical Research Reports
Abstract: This certification report describes the processing and characterisation of ERM®-FA014q, 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 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 value for KV (= energy required to break a V-notched test piece using a pendulum impact test machine) is 61.9 J. The associated expanded uncertainty (1.2 J, k = 2 corresponding to a confidence level of about 95 %) is calculated for the mean of a set of five test pieces. The certified property is defined by the Charpy impact test procedure as described in EN 10045 1 [3] and ISO 148-1 [4]. The certified values are made traceable to the International System of Units (SI) through the corresponding Master Batch ERM®-FA014c of the same nominal absorbed energy (60 J), by testing samples of ERM®-FA014c and ERM®-FA014q in 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 ± 2) °C.
JRC Directorate:Health, Consumers and Reference Materials

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