e ~~ am, =2 = The following items should be imcluded in the discussion of internal emitters: 1. Inhalation of Insoluble Radioactive Particles. basis for permissible limits. 2 Permissible Limits for Large Populations. Radiation Hazards, I would suggest that the discussion on permissible dose from external sources be placed on the agenda for the first day of the meeting. There are certain fundamental principles involved in this that should be settled first. Also, I think agreement on these points can be obtained without too mech discussion. : With kindest regards, I am Yours sincerely, Ge Failla tg GF:KR G.pvil | DOW ARCHIVES