Th decay storage time for radioactive waste diffrs from other waste storage, because the main target will be to
store the waste until the radioactivity is substantially reduced and the waste can be safely disposed of as normal
waste. A minimum storage time of 10 half-life times for radioisotopes in wastes with a half-life of less than 90 days
is a common practice. Infectious radioactive waste should be decontaminated before disposal. Sharp objects such
as needles, Pasteur pipettes and broken glass should be placed into a sharps container. Liquids associated with
solid materials, such as assay tube contents, should be decanted or removed by decay time. All radioactive labelling
should be removed on any items to be disposed of. Box 7.2 gives a sample calculation of decay storage time