ISO 75-3:2025Published

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

Plastiques — Détermination de la température de fléchissement sous charge — Partie 3: Stratifiés thermodurcissables à haute résistance et plastiques renforcés de fibres longues

Abstract / scope

This document specifies a method used for the determination of the temperature of deflection under load of specified plastics (including fibre-reinforced plastics in which the fibre length is, prior to processing, greater than 7,5 mm) under defined conditions. A number of different test conditions are defined, depending on the anticipated specimen dimensions.

For additional information, see ISO 75-1:2020, Clause 1.

Life cycle

Replaces

ISO 75-3:2004WithdrawnPlastics — Determination of temperature of deflection under load — Part 3: High-strength thermosetting laminates and long-fibre-reinforced plasticsInternational Standard · Published 12 May 2004 · ISO/TC 61/SC 2