mention any three ways of storage of radio active materials and disposal of radio active waste .

Storage of Radioactive Material

1-Storage locations P-emitters should be checked with a gamma survey meter.

2-Lead (Pb) is used as a protective material around a radioactive substance, as it is capable of absorbing the harmful radiations.

3-Containers ,in which radioactive materials are stored, should also be labeled with 'Caution Radioactive Material 'signs.

Disposal of Radioactive material

1-Radioactive waste having short half-lives may be stored and some liquid waste can be diluted until their activities drop below acceptable levels, and then disposed as normal waste. 

2-Records of all subsequent disposals must be kept by the user.

3-Materials with non dischargeable levels of radioisotopes should be segregated according to isotope and form, and tagged with a Radioactive-waste label.