BMATe Geant” TaskForceSEVBI Bre eS task Group 76300 2, we Washington 25, De Ce °... ee Sats cSmoor . et “yc 1. . General, ? Pacenber (1953, 12%0R . ‘ . : Appendix III te Annex G ae Decontaminaticn Procedures Radioactive contamination will very probably at some time ¢: during Oseratien CASTLE render en essential area or piece of equipment -..). temporarily unusable. reduce the hazard to eperaticnal levels, ay » Be -. Definitions (Ref. NavMed P~1325) (1) Operational Clearance implies that radioactive contamination ‘exists and that special eperating precedures are required, - Commander, Task ». . Group 7.3 is responsible for authori aing operetional clearances. ee ~ (2) me LD Final Clearences Following the completion of decontaninetion, or if a ship has not been contaminated, Commander Task Group 7.3 may.aut he... oyize final clearance for a particular’ ship or unit.. This shall apply,-..~ also, te final clearance on the decentamination ofall forms ef equipment, ~.' - instruments, furniture, end personal items. Final’‘clearance shall imply ~ * * that the area or ebject. concerned has been monitored and found te have ne™:: ““peint. exceeding 0.015R/24, hr beta plus gamma and no detectableialpha. emitting ‘isotopes, In the event that a unit ef-the taskgroup has some areaor. + 47": “material, at the conclusionef Operaticn. CASTLE, which has net ylelded to. | decontamination, this uni may be released to its type commander, “under, - Lewe“operational clearances ~ allay 2 ta. a wt Chole aos5 (3) It sheula be ‘pamembered that radieactive: fission preducts decay *"as, time passes, the most rapid decay taking place within the first few hours. “after detenstions To we GePABes,see| NRadtolegical IDefense”, VoL i. a PP meenienea c ogy te most: of:‘the:“decontamination operations which wlght’be re~ of,Task Grotip. 7.3,.fresh and/or salt water sprayed under pressure -? used’ for gross. decontaminatien<.:-Ordinarily, salt water. should Bet Cbecaied. on aircrafte;:Other: reagents which are used where water is “inappre— priate er inadeouate arer’ Standard Cleaner, USN C-152, er .147,.5-10% sodfum ‘eitrate sclutien er USAF cleaning cempeund Spec.” 20036 (gunk), kerosene and‘soap powders, Cleaners with an oil carrier are especially suitable fer alr _ oratt decontamination. ee af . Jn such a situation, the reduction of such radioactive a contamination may be mandatory to successful accomplishment of the eperation. 2. *) Decontamination ef units and personnel shall be accomplished on the site te