They don't exist. In past I have explained that the lab work to find uranium in
urine (where it is concentrated and excreted) ----- the only other option is to
biopsy tissues that concentrate uranium, and blood cannot be use ---- is
conducted in specialized geological and chemistry labs. Clinical labs, that is,
medical labs, do not have the equipment to measure the mass of radioactive
materials at the Parts per Billion scale needed to reliably identify the uranium
isotopes excreted in urine.

None of the states (I believe there at least a dozen) that have brought in laws
to provide/order DU testing for recently redeployed US veterans have any labs
available to conduct the tests.

JCJ