The drug techs authorize 40 ounces but 50 would probably bee fine as long as you haven't been drinking tons of fluid the pass few days.
killerweed420 Reviewed by killerweed420 on . Sample validity even for pre-employment test? Does anyone know, if I am getting a pre-employment UA, will they test the validity of my sample in regards to ph, creatine, etc? I know if someone is on probation generally speaking their sample is held under a microscope, but does anyone know if they will do an adulterant test for a pre-employment sample? Thanks! Rating: 5