ISO 18070:2015规定了一种缝隙形成技术和缝隙成型器，用于腐蚀溶液中不锈钢扁平试样或管的缝隙腐蚀试验。本国际标准未规定如何进行缝隙腐蚀试验以及如何评估腐蚀的相关信息。如果试样设计用于电气连接，则本国际标准中规定的缝隙成型器可用于电化学测量。

ISO 18070:2015 specifies a crevice forming technique and crevice former which are intended to be used for crevice corrosion testing of flat specimens or tubes of stainless steels, in corrosive solutions. This International Standard specifies no information concerning how the crevice corrosion testing shall be performed and how the attack shall be evaluated. The crevice former specified in this International Standard can be used for electrochemical measurements, if the specimens are designed for electrical connections.