Plastics. Determination of temperature of deflection under load - High-strength thermosetting laminates and long-fibre-reinforced plastics
Plastics. Determination of temperature of deflection under load - High-strength thermosetting laminates and long-fibre-reinforced plastics
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1 Scope This part of ISO 75 specifies a method for the determination of the temperature of deflection under load of high-strength thermosetting laminates and compression-moulded long-fibre-reinforced plastics in which the fibre length is greater than 7,5 mm. The flexural stress used is not fixed, as in ISO 75‑2 , but is a fraction (1/1 000) of the initial (room-temperature) flexural modulus of the material under test. This allows the method to be applied to materials with a wide range of flexural moduli. For additional information, see ISO 75‑1:2004, clause 1 .
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