2011NF A49-785-3*NF EN ISO 10893-3:2011 Non-destructive testing of steel tubes - Part 3 : automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transversal imperfections.
0000 NF A49-875-5:2000
1987NF A49-871:1987 STEEL TUBES. NON DESTRUCTIVE TESTING METHOD. AUTOMATIC FLUX LEAKAGE TESTING OF FERROMAGNETIC TUBES FOR LONGITUDINAL IMPERFECTIONS.