Proyecto de trabajo
ISO/WD 4433-5
Thermoplastics piping systems — Preliminary evaluation of the resistance to chemicals — Part 5: Unplasticized Polyamide (PA-U) piping components
Reference number
ISO/WD 4433-5
ISO/WD 4433-5
Edition 1
© ISO 2025
Proyecto de trabajo
Resumen
The method of classification given in this part of ISO 4433 serves to determine the chemical resistance of unplasticized polyamide (PA-U) pipes, fittings and valve components designed for the conveyance of fluids in the absence of pressure and stress (e.g. due to earth loads or traffic loads, dynamic or 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 4433-1.
Informaciones generales
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Estado: En desarrolloEtapa: Estudio del borrador del trabajo (WD) iniciado [20.20]
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Edición: 1
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Comité Técnico :ISO/TC 138/SC 3
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