What is this standard about?
This European Standard specifies the sampling of PCDDs/PCDFs. It is an integral part of the complete measurement procedure. The use of the other two parts EN 1948-2 and EN 1948-3 describing extraction and clean-up and identification and quantification, respectively, is necessary for the determination of the PCDDs/PCDFs.
This European Standard has been developed to measure PCDD/PCDF concentrations at about 0,1 ng I-TEQ/m3 in stationary source emissions.
This European Standard specifies both method validation and a framework of quality control requirements which shall be fulfilled by any PCDD/PCDF sampling.
The user has the possibility to choose between three different methods:
- "filter/condenser method"
- "dilution method"
- "cooled probe method"
Each sampling method is illustrated by some sampling systems described in detail in Annex B of this document as examples of proven procedures.