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FP7

Certification of Charpy V-notch reference test pieces of 120 J nominal absorbed energy: Certified reference materials ERM-FA016aw and ERM-FA016az

Funded under: FP7-ENERGY

Abstract

This certification report describes the processing and characterisation of ERM-FA016aw and ERM-FA016az, 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 (absorbed energy = energy required to break a V-notched test piece using a pendulum impact test machine) are 125.7 J for ERM-FA016aw and 121.6 J for ERM-FA016az. The associated expanded uncertainties (4.0 J for ERM-FA016aw and 4.3 J for ERM-FA016az, k = 2 corresponding to a confidence level of 95 %) are calculated for the mean of a set of five test pieces. The certified values are traceable to the Charpy impact test method as described in EN 10045-1 3 and ISO 148 4, via the corresponding master batch ERM-FA016c of the same nominal absorbed energy (120 J).

Additional information

Authors: ROEBBEN G, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);LAMBERTY A, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE)
Bibliographic Reference: EUR 23370 EN (2008), Free of Charge
Availability: http://bookshop.europa.eu/is-bin/INTERSHOP.enfinity/WFS/EU-Bookshop-Site/en_GB/-/EUR/ViewPublication-Start?PublicationKey=LABA23370 (Catalogue Number: LA-BA-23370-EN-C)
ISBN: ISBN: 978-92-79-09024-0
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