British Standards Institution

Source:: ISO
Committee:: PRI/88 - Plastics piping systems
Categories:: Thermoplastic materials
Number of comments:: 0

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 polysulfone (PSU) injection moulded fittings.

This document is capable for polysulfone homopolymer compounds only.

NOTE A conservative approach has been taken by basing the analysis on the activation energy for polyolefins, 110 kJ/mol, for Hot and Cold-water applications. If experimental evidence can be given that other extrapolation time factors are justified, these may be used instead of the factors given in Table 1 of ISO 9080:2012.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

17/05/2024

3. Public Comments

Public Comments start date:

22/08/2024

Public Comments end date:

15/10/2024

Learn more about the standards development process

Standards Development

BS ISO 4075 ISO 4075 Polysulfone (PSU). Effect of time and temperature on expected strength

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