The number of samples to be included in the retesting program and the pass/fail criteria are to be taken from the relevant clauses/subclauses of this document. 11 Test flow and procedures For design qualification and type approval the following test flow and procedures apply. Table 3 summarizes the different tests. The full test flow is given in Figure 2. A description of the tests and test procedures is given in IEC 61215-2:2021. Technology-relevant differences are described in the respective technology specific part of this standards series.