一区卡二区卡三区卡视频-一区免费视频-一区三区三区不卡-一区视频-国产精品www视频免费看-国产精品yy9299在线观看

ISO 15626-2011 焊縫無損試驗(yàn). 衍射時(shí)差法超聲檢測(cè)技術(shù)(TOFD). 驗(yàn)收標(biāo)準(zhǔn)

ISO 15626:2011 specifies acceptance levels for the time-of-flight diffraction technique (TOFD) of full penetration welds in ferritic steels from 6 mm up to 300 mm thickness which correspond to the quality levels of ISO 5817.These acceptance levels are applicable to indications classified in accordance with ISO 10863.