Title: Certification of Charpy V-Notch Reference Test Pieces of 30 J Nominal Absorbed Energy - Certified Reference Material ERM®-FA013bf
Authors: LAMBERTY MARIE ANDREEROEBBEN GertLINSINGER Thomas
Publisher: Publications Office of the European Union
Publication Year: 2010
JRC N°: JRC58996
ISBN: 978-92-79-16025-7
ISSN: 1018-5593
Other Identifiers: EUR 24417 EN
OPOCE LA-NA-24417-EN-C
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC58996
DOI: 10.2787/27546
Type: EUR - Scientific and Technical Research Reports
Abstract: This certification report describes the processing and characterisation of ERM®-FA013bf, 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 27.7 J. The associated uncertainty (1.1 J, k = 2 corresponding to a confidence level of about 95 %) is calculated for the mean of a set of five test pieces. 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 value of ERM®-FA013bf is traceable to the SI, via the SI-traceable certified value of the master batch ERM®-FA013ba, by testing samples of ERM®-FA013ba and ERM®-FA013bf 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 ± 2) °C.
JRC Institute:Institute for Reference Materials and Measurements

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