Quality Test Method (QTM) tests are valid for a period of two or three years from the original test report date, depending on which edition of IEC 62257-9-5 and IEC 62257-9-8 the product is evaluated to. To ensure continued support for another validity period, these results must be renewed or updated, with the cost of testing borne by the manufacturer.

For renewal, if the product remained unchanged since it last underwent QTM testing, a Primary Market Check Method (MCM) test with randomly procured samples can be used to confirm the original results. If the product was modified since it was last tested, then new QTM testing is required for the changed aspects, in addition to Primary MCM testing for all other aspects.

This policy provides further details on the renewal process.

Note: The latest version of this policy corresponds to the latest versions of IEC 62257-9-5 (Edition 5) and IEC 62257-9-8 (Edition 2).