Analytical Procedures

The analytical procedure chosen will have a major influence on the reliability of the final monitoring result.  All EPA licences now require the use of CEN standards when available.  However, the final choice of procedure is more complex and influenced by factors such as:

  • Documented scope of the method e.g. matrix suitability (i.e. is the procedure appropriate for use on wastewater, portable water etc.) and any known limitations,
  • Calibration range, and
  • Known interferences

Licensees should be aware that where analysis is sub-contracted to an accredited laboratory for a test method, the procedure still requires an assessment of the method suitability for the test matrix and any interference which may be present in the licensee’s sample which could affect the test result.  These issues should be discussed with all laboratories to whom work is subcontracted and licence requirements communicated to them.  The final responsibility lies with each licensee to ensure the methods chosen are suitable and will produce accurate and reliable data.

The European Pollutant Release and Transfer Register (E-PRTR) is an inventory of pollutant emissions from industry and other sources across Europe.  The scope of the E-PRTR Regulation covers many EPA licensed facilities.  The European PRTR guidance document lists a number of standards which should be used to analyse the 91 parameters covered within the scope of the Directive.  Licensees may find it useful to reference this list when deciding which methods to use.  In some instances however, licences may specify the analysis method to be used and in these situations any method changes need to be agreed and approved by the Agency.  A copy of the Directive and the guidance document.

Lab analyst