Final Draft
International Standard
ISO/FDIS 4433-2
Thermoplastics piping systems — Preliminary evaluation of the resistance to chemicals — Part 2: Polybutene (PB), polyethylene (PE), crosslinked polyethylene (PE-X), polypropylene (PP) piping components
Reference number
ISO/FDIS 4433-2
Edition 2
© ISO 2026
Final Draft International Standard
Under development
This draft is in the approval phase.
Will replace ISO 4433-2:1997

Abstract

The method of classification given in this part of ISO 4433 serves to determine the chemical resistance of polyolefin pipes, fittings and valve components designed for the conveyance of chemicals in the absence of pressure and stress such as earth loads, dynamic internal stresses.

To determine the chemical resistance, the method uses the change in mass and the changes in tensile properties which result from the storage of test pieces, taken from such pipes, fittings and valve components, in chemicals. The test is carried out in accordance with ISO/DIS 4433-1.

This part of ISO 4433 is also applicable to polyolefin sheets as appropriate.

General information

  • Status
     : Under development
    Stage
    : Final text received or FDIS registered for formal approval [50.00]
  • Edition
     : 2
  • Technical Committee :
    ISO/TC 138/SC 3
    ICS :
    23.040.20 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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