ISO 527 Plastics - Standard Test for Determination of Tensile Properties

This standard specifies general principles for determining the tensile properties of plastics and plastic composites under defined conditions. Several different types of test specimens have been defined to suit the different types of materials described in detail later in ISO 527.

The methods are used to investigate the tensile behavior of test specimens and determine the tensile strength, tensile modulus, and other aspects of the tensile stress/strain relationship under defined conditions.

The methods are selectively suitable for use with the following materials:

• Rigid and semi-rigid molding, extrusion and casting thermoplastic materials, rigid and semi-rigid thermoplastic sheets and films, including filled and reinforced compounds, in addition to unfilled types;
• Rigid and semi-rigid thermosetting molding materials, including filled and reinforced compounds, rigid and semi-rigid thermosetting sheets, including laminates;
• Fiber-reinforced thermosets and thermoplastic composites with unidirectional or non-unidirectional reinforcements, for example mat, woven fabrics, woven cords, chopped strips, combination and hybrid reinforcement, rovings and milled fibers, sheet made of pre-impregnated materials (prepregs);
• Thermotropic liquid crystal polymers.

The methods are not suitable for use with solid cellular materials or sandwich structures containing cellular materials ordinarily using ISO 1926.

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