General principles for determining tensile modulus, strength, and strain of plastics using defined specimen types and test speeds. Supports comparative evaluation of thermoplastics, thermosets, and fiber-reinforced grades.

ISO

ISO 527-1

Revision: 2019

Material testing

Plastics — Determination of tensile properties — Part 1 General principles

General principles for determining tensile modulus, strength, and strain of plastics using defined specimen types and test speeds. Supports comparative evaluation of thermoplastics, thermosets, and fiber-reinforced grades.

Test method

A dog-bone or bar specimen is strained under controlled speed while force and extension are recorded; modulus is typically taken in the initial linear region and strength at maximum load or break as specified.

Specimen requirements

Specimen type and thickness shall match the standard tab; conditioning prior to test is often required. Grips and tabs (if used) must prevent slippage; non-reinforced films may need special fixtures.

ISO 527 works with part 2 and part 3 documents that specify specimen dimensions for different plastic forms.

Hydraulic wedge grips (51-1287 series)

51-1287-100 — Special hydraulic nonshift wedge grip

51-1287-100

Special hydraulic nonshift wedge grip

  • Max. tensile load 100 kN
  • Max. clamping force 200 kN at 315 bar
51-1287-250 — Special hydraulic nonshift wedge grip

51-1287-250

Special hydraulic nonshift wedge grip

  • Max. tensile load 250 kN
  • Max. clamping force 500 kN at 320 bar
51-1287-300 — Special hydraulic nonshift wedge grip

51-1287-300

Special hydraulic nonshift wedge grip

  • Max. tensile load 300 kN
  • Max. clamping force 600 kN at 380 bar
51-1287-600 — Special hydraulic nonshift wedge grip

51-1287-600

Special hydraulic nonshift wedge grip

  • Max. tensile load 600 kN
  • Max. clamping force 1200 kN