NF A91-139-2*NF EN 15042-2:2006 Thickness measurement of coatings and characterization of surfaces with surface waves - Part 2 : guide to the thickness measurement of coatings by photothermic method.
2006NF A91-139-2*NF EN 15042-2:2006 Thickness measurement of coatings and characterization of surfaces with surface waves - Part 2 : guide to the thickness measurement of coatings by photothermic method.