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ISO 148-4:2026

Metallic materials — Charpy pendulum impact test — Part 4: Testing of miniature Charpy-type V-notch test pieces

Publication date:   Apr 9, 2026

General information

60.60   Standard published   Apr 9, 2026

ISO

ISO/TC 164/SC 4 Fatigue, fracture and toughness testing

International Standard

77.040.10   Mechanical testing of metals

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Scope

This document specifies the pendulum impact test method on miniature Charpy-type V-notch test pieces of metallic materials. This document does not cover instrumented impact testing of miniature Charpy-type V-notch test pieces, which is specified in ISO 14556:2023, Annex D[1].
This document can be applied, by agreement, to other impact testing machines, such as drop-weight towers or high-speed servo-hydraulic machines.
The user should be aware that data obtained from miniature test pieces are not directly comparable to those obtained from full-size standard Charpy V-notch test pieces[2],[3].

Life cycle

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PUBLISHED
ISO 148-4:2026
60.60 Standard published
Apr 9, 2026