This European Standard specifies the general performance criteria and test procedures for automated measuring systems used for discontinuous (periodic) measurements of stationary source emissions. It applies to the performance testing of automated measuring systems based on measurement techniques specified by a standard reference method (SRM) or an alternative method (AM). Performance testing is based on the general performance criteria and test procedures specified in this European Standard and on the specifications in the standard specifying the SRM or AM. This includes testing of the applicability and correct implementation of the QA/QC procedures specified in the method-specific standard. This European Standard supports the requirements of particular EU Directives.