Composites. Prepregs. Determination of gel time Ingestion-build-52208 The ultrasonic bond test differs

The ultrasonic bond test differs only between bond and bond defect

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Relationship between the biometric system and the application

2 Typical competency areas

Composites. Prepregs. Determination of gel time Ingestion-build-52208 The ultrasonic bond test differs1 Scope This International Standard specifies a method for the determination of the gel time of prepregs made of continuous reinforcement impregnated with epoxy and or unsaturated polyester resin. The method is applicable to most prepregs with a width in the range 300 mm to 1 000 mm. It is not suitable for very narrow prepregs (for example narrow tape), nor for prepregs with a low resin content. NOTE Other methods of measuring gel time exist. These