ISO 148:1983 — Steel Charpy V-Notch Impact Test

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ISO 148 is the earlier ISO Charpy pendulum impact method for steel using V-notch test pieces. It has been replaced by the current multi-part ISO 148 series, so new work references those. To match this to your program, talk with our team.

What ISO 148 Covered

The original ISO 148 defined the Charpy V-notch test for steel and the measurement of absorbed energy. Its content is carried forward and expanded in the current parts.

Current Replacement

For new work, use ISO 148-1 for the test method and ISO 148-2 for machine verification. Legacy references to ISO 148 map onto these.

Reading the Designation

Cited as ISO 148 with its year. Confirm whether the controlling document expects the current ISO 148-1. To configure impact testing, request a quote.

Related Standards

ISO 148-1 is the current Charpy method and ISO 148-2 covers machine verification.

Request a Quote

Updating an ISO 148 requirement? Request a quote and our team will help you build a system matched to your specimen type and test temperature.


TensileMill CNC products for ISO 148

Our specimen-preparation systems and testing equipment compatible with ISO 148:


Equip your lab for ISO 148 with TensileMill CNC

TensileMill CNC builds testing systems used across quality control, research, and production. That typically means CNC systems for flat and round impact specimen preparation with precision notching. Request a quote and our team will help you configure a system for ISO 148.