Conformity to EPA Method 23A
The "EPA method 23A, determination of dioxins is a standard, which is used in the United
States and in other countries. The DioxinMonitoringSystem® fulfils the principles of this standards, which
The main differences are the use of dilution air and the special designed filter cartridge, which
allows to work without condenser. The condensation of a liquid phase is avoides and the dioxins are collected in the
dry filter cartridge for the following analysis.
The improvement of long term sampling leads to very low blank values. A volume of 100 to 400 m3 is
sampled during every measurement . The increase of the sampled volume decreases the detection limit to 0,001 ng
The ETV test program has shown that I-TEQ values of the DioxinMonitoringSystem® are
within <10% uncertainty compared to EPA method 23A.