The International Organization for Standardization (ISO). This document supersedes EN 1597-3:1997. The text of ISO 15792-3:2000/Cor 1:2006 has been approved by CEN as a EN ISO 15792-3:2008 without any modification. 12p. This part of ISO 15792 applies, when invoked by the classification standard, to the classification of arc welding electrodes and wires for welding carbon-manganese steels, low alloy steels, stainless steels and nickel base alloys. It describes the preparation of the test piece and the evaluation of the test results, for assessing conformance to requirements of positional usability and root penetration set forth by the classification standard for electrode or wire.