The area around the injection sites will be roped off and appropriate warning signs will be set up. Only personnel taking part in the injection work will be allowed to remain at the site. Water hoses that can deliver copious quantities of water should be placed at the injection site. Thus, any spill of tracers can be

washed away. In the case of onshore operation, the nearby surface area should be covered by plastic sheets with water absorbent tissue on top.

111.1.4.3. Personal protection equipment

The injection crew must carry visors and masks during the critical phases of the injection. Rainsuits or water repellent clothes should be worn in case of spillage of tracer solution.