Thermoplastics and thermosetting molding materials

A key aspect of the characterization of molding materials is the inter-laboratory reproducibility of test results.
Specimen production, specimen shapes, and test sequences are all specified in detail,
with rigorous demands on both repeatability and traceability.
In quality control, the basic standard of evaluation is the change in measured values over a period of time.

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Important tests in the characterization of molding materials

Tensile Test

ISO 527-1, ISO 527-2, ASTM D638

Tensile test on plastic molding compounds: ISO 527-1/-2 and ASTM D638: Tensile stress, strain, tensile modulus, yield point, point of break, Poisson's ratio Find out everything regarding the purpose of the test and the required product portfolio.

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Impact tests

Among others, ISO 179, ASTM D6110, ISO 180, ASTM D256

Here you will find, among other things, information on Charpy test (ISO 179-1), instrumented Charpy test (ISO 179-2), Izod test (ISO 180), tensile impact test (ISO 8256), puncture test (ISO 6603-2).

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3-Point Flexure Tests

ISO 178

The 3-point flexure tests described in ISO 178 and ASTM D790, demonstrate classic characterization methods for rigid and semi-rigid plastics. Typical test results include the flexural modulus, stress at 3.5% elongation, stresses and elongations at the yield point and at specimen break.

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