ISO 8149:2025
International Standard
Current Edition
·
Approved on
01 May 2025
Unplasticized polyamide (PA-U) pipes — Effect of time and temperature on the expected strength
ISO 8149:2025 Files
English
7 Pages
Current Edition
30.89 OMR
ISO 8149:2025 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.
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