What is this standard about?
This is the first in a three part standard on the mechanical testing of metals to test their toughness using the Charpy impact test. This part outlines the test method. The second part covers how to verify testing machines, and the third part, how to prepare Charpy V-notch test pieces for indirect verification of pendulum impact machines.
Who is this standard for?
The Charpy impact test is applied in a very wide range of industries. This standard will be used by metallic material manufacturers, purchasers and testers in those industries.
Why should you use this standard?
This part of ISO 148 specifies the Charpy (V-notch and U-notch) pendulum impact test method for determining the energy absorbed in an impact test of metallic materials.
NOTE: It does not cover instrumented impact testing which is specified in ISO 14556.
What’s changed since the last update?
The standard was systematically reviewed by technical experts to ensure its continued market relevance. This standard is a technical revision of the 2009 version which has been withdrawn.
