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Product Product ISO 16770:2019
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Description Description

This document specifies a method for determining the environmental stress cracking (ESC) resistance of polyethylene (PE) materials in a defined test environment. The test is carried out on notched test specimens machined from moulded sheets/specimens or from finished products. The test specimen is subjected to a static tensile load when immersed into an environment such as a surfactant solution held at a specified temperature. The time to failure is measured.

The method has been specifically developed for polyethylene materials but can be used to evaluate PE products, such as pipes, fusion welds/fittings and blow-moulded PE containers to study the effect of aggressive environments, i.e. dangerous goods and chemicals.

The method is suitable for use with test specimens moulded to chosen dimensions or machined from compression moulded sheets or injection moulded specimens, or from finished products, such as mouldings and pipes. When the test specimens are machined from extruded or moulded parts, the results can be affected not only by properties of the material, but also by stresses or orientation introduced during processing.

Standard Number Standard Number ISO 16770:2019
Title Title ISO 16770:2019 Plastics — Determination of environmental stress cracking (ESC) of polyethylene — Full-notch creep test (FNCT)
Status Status Published
Publication Date Publication Date 25 Sep 2019
Cross References Cross References
Descriptors Descriptors
ICS ICS 83.080.20
Committee Committee ISO/TC 61/SC 9 Thermoplastic materials
Publisher Publisher PECB Store
Format Format PDF
Delivery Delivery NO
Pages Pages 25
File Size File Size KB