31. Non - destructive examination of welds - penetrant testing of welds - acceptance levels 32. Methods of liquid penetrant testing and classification of indication for steel castings 33. Non - destructive testing - penetrant testing - part 2 : testing of penetrant materials 34. Dye penetrant test 35. Non - destructive testing - penetrant testing and magnetic particle testing - viewing conditions 36. Non - destructive examination of welds - penetrant testing of welds - acceptance levels 37. Non - destructive testing - penetrant testing - part 2 : testing of penetrant materials 38. Metallic multilayer plain bearings - method for non - destructive die penetrant testing 39. Non - destructive testing - penetrant testing and magnetic particle testing - viewing conditions 40. Non - destructive testing of steel forgings - part 2 : penetrant testing ; german version en 10228 - 2 : 1998
