Tiêu chuẩn ISO 148-1: Metallic materials — Charpy pendulum impact test — Part 1:Test method , ISO 148-2 : Metallic materials — Charpy pendulum impact test — Part 2:Verification of testing machines , ISO 148-3 : Metallic materials — Charpy pendulum impact test — Part 3: Preparation and characterization of Charpy V-notch test pieces for indirect verification of pendulum impact machines
