NF T30-140-4:2004 Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 4 : assessment of degree of cracking.
2004NF T30-140-4:2004 Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 4 : assessment of degree of cracking.