Protective clothing radiation work

PERSONAL PROTECTION wear appropriate chemical protective clothing, water contaminated with alpha and gamma radiation should not be allowed to contact skin or personal clothing wear waterproof protection a mask with air filter may be required if the radioactivity is airborne enclose operations and/or use local exhaust ventilation at site of chemical release use dust-and splash-proof safety goggles appropriate respirators are needed in areas where exposure would be above the permissible exposure level wear self-contained breathing apparatus in unknown concentrations or IDLH conditions maintain eyewash baths and safety showers in work... 

For in-reactor surveys the need to enter contamination and radiation zones considerably reduces operator efficency. In a typical 8 hour day up to 4 hours may be spent in preparation and decontamination and the protective clothing worn restricts motion and vision such that the operator probably works at only half normal pace. In addition,... 

Priority should be given to preventing, eliminating or controlling the sources of radiation hazards. However, there can be situations or working areas where residual sources of airborne and surface contamination continue to pose an exposure hazard. In such areas where personal contamination is possible, appropriate protective clothing and equipment should be provided. 

Radiation protection control is one of most important considerations in the program. Dose equivalent rate and radioactive concentration are measured daily and reported by health physicists. Each work plan is made on the basis of this measurement and work areas are classified into various categories. For example, radioactive contamination is classified into three groups C-l(less than 4 Bq/cm ), C-2(4 to 40 Bq/cm and C-3(more than 40 Bq/cm ). Work conditions, such as respiratory protection and personal protective clothing, are then decided according to this categorization. Data on radiological safety... 

Maximrun radiant heat intensity at any location where urgent emergency action by persormel is required. When personnel enter or work in an area with the potential for radiant heat intensity greater than 2000 Btu/h-fR, then radiation shielding and/or special protective apparel (e.g., a fire approach suit) should be considered. SAFETY PRECAUTION It is important to recognize that personnel with appropriate clothing cannot tolerate thermal radiation at 2000 Btu/h- fE for more than a few seconds. 

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