This part of IEC 61300 provides general information and guidance for the basic test and measurement procedures defined in the IEC 61300-2 series and IEC 61300-3 series for interconnecting devices, passive components, mechanical splices, fusion splice protectors, fibre management systems and protective housings. This standard is used in combination with the relevant specification which defines the tests to be used, the required degree of severity for each of them, their sequence, if relevant, and the permissible performance limits. In the event of conflict between this basic standard and the relevant specification, the latter takes precedence.