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ISO 8149:2025

Unplasticized polyamide (PA-U) pipes — Effect of time and temperature on the expected strength

May 1, 2025

General information

60.60     May 1, 2025

ISO

ISO/TC 138/SC 5

International Standard

23.040.20  

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Scope

This document specifies the minimum values for expected strength as a function of time and temperature in the form of reference lines, for use in calculations on unplasticized polyamide (PA-U 180) extruded pipes.
NOTE 1        PA-U 180 follows ISO 16486-1 in terms of minimum strength values and covers both PA-U11 180 and PA-U12 180.
NOTE 2        As there is not test data available for other types of polyamide (e.g. PA-U 160) this document does not currently contain appropriate reference lines for these materials. Future revisions will include other types of polyamide when sufficient test data becomes available.

Life cycle

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PUBLISHED
ISO 8149:2025
60.60 Standard published
May 1, 2025