ISO 179 (Charpy impact strength for rigid plastics) – Standard Overview

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ISO 179 is the earlier ISO Charpy impact method for rigid plastics. It has been replaced by the current ISO 179 parts, so new work references those. To match this to your program, talk with our team.

What ISO 179 Covered

The original ISO 179 defined the pendulum Charpy impact test for rigid plastics. Its content is carried forward in the current parts.

Current Replacement

Use ISO 179-1 for the general method and ISO 179-2 for instrumented testing. Legacy references to ISO 179 map onto these.

Reading the Designation

Cited as ISO 179 with its year. Confirm whether the current ISO 179-1 is expected. To configure impact testing, request a quote.

Related Standards

ISO 179-1 is the current Charpy method for plastics and ISO 179-2 adds instrumentation.

Request a Quote

Updating an ISO 179 requirement? Request a quote and our team will help you build a system matched to your material type and notch requirements.


TensileMill CNC products for ISO 179

Our specimen-preparation systems and testing equipment compatible with ISO 179:


Get ready for ISO 179 with TensileMill CNC

TensileMill CNC helps labs run ISO 179 with repeatable, audit-ready results. Depending on your specimens, that can include CNC systems for flat and round impact specimen preparation with precision notching. Let us know your application and our engineers will help you build a compliant ISO 179 setup.