90.60 Close of review Jun 5, 2023
ISO
ISO/TC 119/SC 3 Sampling and testing methods for sintered metal materials (excluding hardmetals)
International Standard
77.160 Powder metallurgy
This document specifies a method for the determination of the fluid permeability of permeable sintered metal materials in which the porosity is deliberately continuous or interconnecting, testing being carried out under such conditions that the fluid permeability can be expressed in terms of viscous and inertia permeability coefficients (see Annex A).
This document does not apply to very long hollow cylindrical test pieces of small diameter, in which the pressure drop of the fluid in passing along the bore of the cylinder might not be negligible compared with the pressure drop of the fluid passing through the wall thickness (see A.5).
WITHDRAWN
ISO 4022:1987
PUBLISHED
ISO 4022:2018
90.60
Close of review
Jun 5, 2023