This standard 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 tan be expressed in terms of viscous and inertia permeability coefficients (see annex A).
DS/EN ISO 4022:2006 history
2006DS/EN ISO 4022:2006 Permeable sintered metal materials - Determination of fluid permeability