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).
EN ISO 4022:2018 history
2018EN ISO 4022:2018 Permeable sintered metal materials - Determination of fluid permeability (ISO 4022:2018)
2006EN ISO 4022:2006 Permeable sintered metal materials - Determination of fluid permeability