DF: the decision and act of giving legal character to a measuring instrument after its initial verification or of reconfirming or restoring its legal character after a subsequent verification
DF: the decision and act of giving legal character to a measuring instrument after its initial verification or of reconfirming or restoring its legal character after a subsequent verification
DF: the decision and act of giving legal character to a measuring instrument after its initial verification or of reconfirming or restoring its legal character after a subsequent verification