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1S0T0PIC TRACERS AND NUCLEAR RADIATIONS [Chap. 19 



Fig. 120. Mechanical tongs for remote manipulation of radioactive materials. 



can be arranged to give an erect image and a view of the apparatus the least 

 confusing to the operator. 



Laboratory coats and gloves are essential items for all personnel in a 

 radiochemistry laboratory. Coats should never be worn outside the labora- 

 tory or be removed from it except for laundering, and if contaminated they 

 must be destroyed. When high-activity materials or active liquids of any 



