ISO 16770:2004

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Plastics — Determination of environmental stress cracking (ESC) of polyethylene — Full-notch creep test (FNCT)

Published By	Publication Date	Number of Pages
ISO	2004-02	18

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Categories: 83.080.20 - Thermoplastic materials, ISO

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Description

ISO 16770:2004 specifies a method of determining the stress cracking resistance of polyethylene materials in any environment. The test is carried out on notched test specimens cut from compression-moulded sheet or finished products, as applicable. The test specimen is subjected to a static tensile load when immersed in an environment such as a surfactant solution held at a specified temperature, and the time to failure measured.

The method has been specifically developed for polyethylene materials but can be used to evaluate PE extrusions, such as pipe segments, PE fusion welds/fittings and blow-moulded PE containers to study the effect of aggressive environments, i.e. dangerous goods/chemicals. The method may also be adapted for other thermoplastic materials, e.g. polypropylene (PP). In this case, care must be taken in interpreting the results as the processing stresses/orientation in finished products may have an effect.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	2004-02
Pages Count	18
Language	English
Edition	1
File Size	245.8 KB
ICS Codes	83.080.20 - Thermoplastic materials

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ISO 16770:2004

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