Proof
ISO/PRF 4433-3
Thermoplastics piping systems — Preliminary evaluation of the resistance to chemicals — Part 3: Unplasticized poly(vinyl chloride) (PVC-U), high-impact poly(vinylchloride) (PVC-HI), modified poly(vinylchloride) (PVC-M), alloy poly(vinylchloride) (PVC-A), oriented poly(vinylchloride) (PVC-O) and chlorinated poly(vinyl chloride) (PVC-C) piping components
Reference number
ISO/PRF 4433-3
Edition 2
© ISO 2026
Proof
En desarrollo
Este borrador está en fase de aprobación.
Reemplazará ISO 4433-3:1997

Resumen

The classification method in this part of ISO 4433 is used to determine the chemical resistance of pipes, fittings and valve components made of PVC-U, PVC-HI, PVC-M, PVC-A, PVC-O and PVC-C designed for the transport of chemicals in the absence of pressure and stresses, such as earth loads and dynamic internal stresses.

To determine chemical resistance, the method uses the change in mass and changes in tensile properties that result from storing test pieces, taken from such pipes, fittings and valve components, in chemicals. The test is performed in accordance with ISO 4433-1.

This part of ISO 4433 is also applicable to PVC-U, PVC-HI, PVC-M, PVC-A, PVC-O and PVC-C sheets, as appropriate.

Informaciones generales

  • Estado
     : En desarrollo
    Etapa
    : Texto final recibido o FDIS registrado para su aprobación formal [50.00]
  • Edición
     : 2
  • Comité Técnico :
    ISO/TC 138/SC 3
    ICS :
    23.040.20 
  • RSS actualizaciones

Ciclo de vida

Objetivos de Desarrollo Sostenible

Esta norma contribuye al siguiente Objetivo de Desarrollo Sostenible

9
Industry, Innovation and Infrastructure

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