Posted 2/28/2020 6:47 PM (GMT 0)
Umm,
"<0.06"
That is as low as the testing equipment your lab uses can go.
Whenever you see the less than sign, you are at the lowest that the lab's equipment can go.
The less than sign is dependent on equipment used, some are more sensitive than others.
If doc really wants to know, have him shop for a lab that goes lower.