1、 KS D ISO 17577KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS 6 mm KS D ISO 17577 : 2007 2007 11 22 http:/www.kats.go.krKS D ISO 17577: 2007 : () ( ) () () () KIST ( ) : (http:/www.standard.go.kr) : :2007 11 22 2007-1039 : : ( 02-509-7274) (http:/www.kats.go.kr ). 7 5 , . KS D ISO 17577 : 2007 6 mm SteelU
2、ltrasonic testing for steel flat products of thickness equal to or greater than 6 mm 2006 1 ISO 17577, Steel Ultrasonic testing for steel flat products of thickness equal to or greater than 6 mm . 1 . 6 200 mm . S/N . KS B ISO 12094 . (: ) . . 6 mm 200 mm . . 2 . . ( ) . KS B ISO 9712 , KS B ISO 120
3、94, 3 . 3.1 . , , KS D ISO 17577: 2007 2 3.2 3.3 3.4 , . 3.5 . . 3.6 20 % . 4 ( ) . . a) . . b) 1/2 . . . , 8.1.1 6 dB . 5 KS B ISO 9712 / 3 KS D ISO 17577: 2007 3 . . 6 6.1 a) . b) , . c) . d) . e) . . f) . 6.2 A-Scan . , . 6.3 . a) b) c) , , , , d) , (: ) e) , , (DAC) , ( , , ) f) g) (: ) h) ( , )
4、 6.4 . a) : 20 dB 1 dB . : 20 dB 1 dB 60 dB 2 dB . : 2 % . , 1 1 , . KS D ISO 17577: 2007 4 b) . 15 % 15 mm . 10 mm , 1.5 mm . 6.5 1 , 2 . 1 ( e)mm a, b6 e 60 2 60 1 000 500 500 100b100 50b50 20 1 000 mm2500 500 mm2100b S 500 mm2 15/1 m1 m B3 (11 mm ) N2 8 mmb 11 mm 10/1 m1 m B4 (8 mm ) N3 5 mm 8 mm
5、 10/1 m1 m a (8.1.2 ) b 5 mm . KS D ISO 17577: 2007 9 6 2 a Lmaxmm Smaxmm2 Lminmm 1 m ( Smax) ( Lmin) E150 1 000 25 5 E240 500 20b4 E330 100 15b3 E420 50 10 2 1 5.0 mm . 2 E1, E2, E3, E4 8.1.1 . 3 5.0 mm . a 5.0 mm . b 10 mm (Lmin) . 7 D Lmaxamm 1 m E111 mm D 50 5 E28 mmb D 11 mm 40 4 E38 mmb D 11 m
6、m 30 3 E45 mm D 8 mm 20 2 a8.1.1 Lmax . b 5 mm . KS D ISO 17577: 2007 10 1 2 2 3 4 5 6 7 S ad L2 , S S1 S2 2 KS D ISO 17577: 2007 11 1 EN 473, Non destructive testing Qualification and certification of NDT personnel General principles 2 ASNT Recommended Practice No. SNT TC 1A 3 ACCP ASNT Central Cer
7、tification Program 6 mm 135513 7017 (02)60094114 (02)600948878 http:/ KS D ISO 17577: 2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS SteelUltrasonic testing for steel flat products of thickness equal to or greater than 6 mm ICS 77.040.20; 77.140.50 Korean Agency for Technology and Standards http:/www.kats.go.kr