Are Uranium and Thorium products radioactive? Are they naturally occurring or depleted isotopes?
AccuStandard sells only the 1000 µg/mL concentrations of the Uranium and Thorium. These products are made from naturally occurring Uranium and Thorium and have been tested and fall below the IATA 0.002 µCi/g limit for radioactive materials. AccuStandard cannot guarantee the exact isotopic distribution in either of these products.