He has written that honey samples have been sent to PA for Maryanne Frazier to have tested thru a program set up by Penn State. One sends a sample and a check and gets results on the presence or absence of something like 170 chemical compounds. They use the chemical nameas and not the Brand names because the chemicals sometimes go by differentr Brand names or are parts of some different Brand name mixtures.
I don't think any samples that have gone thru this analysis have been found to be chemical free. Bees pickup all sorts of stuff from the environment in which they forage, which is generally polluted to a greater or lesser degree.
If a beekeeper uses no miticides, antibiotics or other chemicals in their hives, those should not show up in the analysis, but sometimes they do from other sources or from old comb previously used in hives that were treated w/ miticides and other stuff.