Easy to Understand Results
The QED produces these results immediately, and provides all the information needed to correctly classify the road binder type. In the results sheet on the left, look at the final column. Any entry that mentions coal tar at above 0.1% is hazardous. So samples 2,4,5,7 and 8 are hazardous. The others are not. It's a simple, reliable and effective method.
Sample RP1 (row 1 in results sheet above) is from a bitumen based road binder and contains both raw bitumen and a typical bitumen based road binder.
Under WM3 this is Non Hazardous.
The QED has matched the fingerprint from sample H22 (row 4 in results sheet) to bitumen and
coal tar. The results show that 17% of the binder is coal tar with a BaP content of approximately 1.2%.
This material is Hazardous under WM3 guidance.