Methods of testing plastics - Mechanical properties - Flexural vibration. Non-resonance method Ingestion-build-242630

Methods of testing plastics - Mechanical properties - Flexural vibration. Non-resonance method Ingestion-build-2426301 Scope This part of ISO 6721 describes a flexural, non resonance method for determining the components of the Youngs complex modulus E* of polymers at frequencies typically in the range 0,01 Hz to 100 Hz. Higher frequency measurements can be made, but significant errors may be obtained in the dynamic properties measured (see 10. 2. 1 and 10. 2. 2). The method is suitable for measuring dynamic storage moduli in the range 10 MPa to 200 GPa. Although

Epoxy resin is a system that may be used that enables the material to meet the requirements of this specification

This method is also applicable to stress-rupture evaluations of pipes which are difficult to test

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Annex A (normative) Testing

Some samples of UHF connectors can handle RF peak power levels well over one kilowatt based on the voltage rating of 500 Volts peak

in which the pressure drop of the fluid in passing along the bore of the cylinder might not be negligible compared with the pressure drop of the fluid passing through the wall thickness

New materials are being discovered or produced and astonishing claims are being made concerning their properties

For the efficient and optimal performance of circular sheet metal ducts

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“pipe” as used in ISO 20769‑2 is understood to cover other cylindrical bodies such as tubes

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or photometry