1范围本欧洲标准规定厚度8mm以上金属材料（超声衰减特别是散射衰减较小）的熔化焊缝的手工超声检验方法。主要用于焊缝和母材均为铁素体的全焊透焊接接头。如有规定且会适，经签约单位同意，有关技术也可用于；（1）除上述材料以外的其他材料；（2）部分焊透焊缝；（3）自动检 1 Scope This European Standard specifies methods of manual ultrasonic testing of fusion welds of metallic materials over 8 mm in thickness (ultrasonic attenuation, especially with small scattering attenuation). Mainly used for weld and base metal ferritic full penetration welded joints. If specified and may be appropriate, the technology may also be used, with the agreement of the contracting parties; (1) Materials other than those mentioned above; (2) Partial penetration welds; (3) Automatic inspection