BS EN ISO 17640:2018规定了金属材料熔焊接头的手动超声波检测技术 厚度材料&lg；8毫米，表现出较低的超声波衰减（尤其是由于散射） 在0°C至60°C的目标温度下，主要用于全熔透焊接 焊接材料和母材均为铁素体的接头。交叉引用:ISO 5577ISO 1166ISO 16826ISO 16810ISO 23279EN 12668（所有部分）ISO 16811ISO 9712ISO 17635ISO 5817购买本文件时提供的所有当前修订版均包含在购买本文件中。

BS EN ISO 17640:2018 specifies techniques for the manual ultrasonic testing of fusion-welded joints in metallic materials of thickness ≶8 mm which exhibit low ultrasonic attenuation (especially that due to scatter) at object temperatures from 0 °C to 60 °C. It is primarily intended for use on full penetration welded joints where both the welded and parent material are ferritic.Cross References:ISO 5577ISO 11666ISO 16826ISO 16810ISO 23279EN 12668 (all parts)ISO 16811ISO 9712ISO 17635ISO 5817All current amendments available at time of purchase are included with the purchase of this document.