00561naa#a2200193#i#4500001001400000005001700014011001400031100004100045101000800086102000700094200011600101210003700217215001000254608002700264700001900291700002200310700002000332856001500352EN\\bibl\954020240515223759.3##a1609-3178##a20151216b2015####ek#y0engy0150####ca0#aRUS##aRU1#aProcedure of NDT Instruments Qualification Tests. Classification of Ultrasonic Testing DeviceseJournal article1#aSaint-PetersburgcLLC SVENd2015##a3 с.##aJournal article2local#1aOkunevgDenis #1aTulskiygMikhail #1aLitvinovgIvan 4#anaukaru.ru