ISO 527-1 & 527-3 Test Standard Explained

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Tensile Properties of Film - ISO 527-1,-3

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For film and sheet materials with a thickness up to 1 mm. For materials with a thickness greater than 1 mm ISO 527-1,-2 should be used.

Property	Definition
Tensile Modulus	Slope of the stress-strain curve between two specified strains (ε₁=0.0005 and ε₂=0.0025)
Tensile Strain at Break	Tensile strain corresponding to the point of rupture.
Tensile Strength	Maximum tensile stress sustained by the specimen during a test.
Tensile Stress at Yield	Tensile stress at which an increase in strain occurs without an increase in stress (yield point).

Two sets of specimens are tested for anisotropic materials, the first set parallel to the direction of polymer orientation (MD - machine direction) and the second set perpendicular to the direction of polymer orientation (TD - transverse direction).

Polymer Orientation

Specimen Types
Specimen	Diagram	Usage
1B		Rigid sheet
2		Preferred
4		Flexible thermoplastic sheet
5		Very high strain at break materials

Similar Standards

ASTM D882

Property information for specific grades of resin are available in the Prospector.
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