This part of IEC 61300 provides a test to determine the corrosion resistance of the metals used in the construction of fibre optic interconnecting devices and passive components which include connectors, field mountable connectors (FMC), passive components, splices, hardened connectors, street cabinets, boxes and closures. This document determines if dissimilar metals have been well finished to prevent corrosion. The requirements of the tests for these devices are defined in IEC 61753-1.