ISO 604 — Compressive Properties of Plastics (Compression Test Method)
ISO 604 is the test method for the compressive properties of plastics under defined conditions. To match this to your program, talk with our team.
What ISO 604 Covers
It determines compressive strength, modulus, and yield of plastics, with specimen and alignment requirements to keep the specimen in pure compression.
How the Test Is Run
A specimen with flat, parallel ends is compressed at a controlled rate between aligned platens, and force and deformation are recorded to obtain the compressive properties.
Why It Matters
Compression properties support design of plastic parts under compressive load; square specimen ends and accurate alignment are essential.
Reading the Designation
Cited as ISO 604 with its edition year. Confirm the edition and specimen requirements before finalizing setup. To configure a plastics testing setup, request a quote.
TensileMill CNC products for ISO 604
Our specimen-preparation systems and testing equipment compatible with ISO 604.

TensileMill CNC MICRO – Precision Flat Tensile & Impact Micro Machine
MICRO – Precision Flat Tensile & Impact Sample Preparation

Electro Mechanical Universal Testing System 100N / 10kN with Precision Load Cell
Electro-Mechanical UTM · 100 N / 10 kN with Precision Load Cell

Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell

Electro Mechanical Universal Testing System 50kN / 1000kN with Precision Load Cell
Electro-Mechanical UTM · 50 kN / 1000 kN with Precision Load Cell
Set up ISO 604 testing with TensileMill CNC
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.