Tritium

H-3

Half Life: 12.28 years

Radiation: beta

Max. Energy: 0.019 Mev (100%)

Range in Air: 4.7mm

ALI: 80 mCi

DAC: 2E-5 uCi/mL

Hazard: The beta radiation from mCi quantities is not an external radiation hazard. However, ingestion, inhalation or absorption through the skin may result in an external exposure. Tritiated water may enter the body through either of these paths.
Safety Precautions:
  • Follow General Precautions for working with radioactive material.
  • Dosimetry is not required when handling tritium.
  • Most research involving tritium may be performed on a laboratory bench.
  • Shielding is not required.
  • Use liquid scintillation detector to monitor for contamination.
  • Urinalysis is required within 24 hours after working with 100 mCi or greater of tritiated water or tritium compounds.
  • Dispose of radioactive waste in accordance with requirements in Appendix G of the Radiation Safety Manual.

H-3, C-14, S-35, P-32, I-125, Cr-51, Tc-99m, P-33

Radiation Safety