New Guidline for Measuring Dioxines
Guideline VDI 3499 Part 2 and 3
The corresponding two parts of the VDI Guideline, dealing with the filter/condenser method and the cooled probe method are each divided into Part A and Part B. Part A describes examples of application of DIN EN 1948 for the concentration range of 0,1 ng I-TEQ/m3 and smaller. The described measurement methods have already been validated within the framework of the European technical standardization work. Therefore the measuring institutes are not obliged to carry out a renewed validation for the whole measurement method. This also includes efficiency tests of the collecting parts according to 6.1 of EN 1948-1.
Part B deals as a supplement to DIN EN 1948 for the validated measurement range at concentrations of about 1 ng I-TEQ/m3 and larger. The standardized measurement methods are especially used for the determination of PCDD and PCDF from waste gas caused by stationary industrial plants containing concentrations recognizably higher than 0,1 ng I-TEQ/m3 (crude, intermediate, pure gas) or very high dust contents.
The described methods comply with the normative requirements of DIN EN 1948. They were used within exceedingly varying plants.
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