PROFILE/Plus Sheffield Roughness Bottom Side w/Porosity (Orifice 1-1/8″) (R Version)
Bottom Side Sheffield Roughness "Rougher Grades" with Porosity - Porosity Ranges: Sheffield(0.1 - 420), Eq. Oil Gurley(0.9 - 9477), HP Gurley sec/2.5ml Low Range(0.1-243), HP Gurley sec/2.5ml High Range(0.1-849), HP Gurley sec/10 ml Low Range(0.1-988), HP Gurley sec/10 ml High Range(0.3-3443), Bendtsen 5sq cm(0.2-1994), Bendtsen 10sq cm(0.1-997),
