ISO 75-3 Plastics — Determination of temperature of deflection under load — Part 3: High-strength thermosetting laminates and long-fibre-reinforced plastics

ISO 75-3 Plastics — Determination of temperature of deflection under load — Part 3: High-strength thermosetting laminates and long-fibre-reinforced plastics

At a Glance

Document type: Test Method.

Edition: active, current edition ISO 75-3:2025.

Scope

Specific requirements for high-strength thermosetting laminates and long-fibre-reinforced plastics in which the fibre length prior to processing is greater than 7,5 mm.

Used with the general method of ISO 75-1.

What the Result Tells You

Because the numbers depend on those fixed conditions, a result is only meaningful when the report names the standard, the edition and any options the method allows.

Equipment for This Standard

Equipment on our site referenced against ISO 75-3:

HDT/VICAT Testing Machine – Thermal Analysis for Plastics NG-HDT

Reading the Designation

ISO 75-3: the designation as published by the issuing body.

Year suffix: the revision is identified by its year, as in ISO 75-3-25. A specification that names an edition fixes that edition; a later revision does not apply to an order retroactively.

When a drawing, purchase order or quality procedure cites this document, the test setup, the specimen and the report follow that citation.

Get Help With ISO 75-3

For a setup built around ISO 75-3, or to confirm which fixtures and accessories a given specimen calls for, Request a Quote or Contact Us.

Part of a Series

ISO 75-3 is one part of ISO 75. The other parts of the series cover related requirements, so the part cited in your specification is the one that governs the test.