G ration Plan Ct ig@ 7.3No. 1-53 (c) The decentaminatien ares. should be clearly marked end roped (a) Every effort shall be made to prevent the contamin-tion of eff in seme manner. the ship in the decontaminetion area, «4 dispesable waterproof cenvas deck cover with chutes te clear water ever the side might be used fer this purpose, (e) Provision should be made fer dispesal ef contaminated items in the decontamination area. monitored, (f) All material leaving the decontamination area shall be (g) Becontaminatien operations shall be interrupted inter- mittently for monitoring of aircraft to determine effectiveness, pericds should be calculated after intensity levels are measured. (h) “York Decontamimtien eperatiens should centinue until the level ef intensity drops te whet is considered the voint ef diminishing returns. In the case of helicopters, every effort shall be made te meintain maximum 4 decontaminetien since these aircraft probably will be required to make re-~ Aint peated flights inte contaminated areas. Due consideration should be given to maintaining helicopter operations and further mainteining meximum number ef "clean" helicopters, bearing in mind thet personnel are allowed only 3.9R for the operrtien, fO (1) Approximately 40% ef original contamination should be re~ T )aowre by the first application of clesning solution snd flushing and 6 View approximately 10% by the second application; further applicatiens are of % j dubious value. («) ” (y) Where metal parts are contaminated end there is danger of damaging adjacent items ef porous material, such as febric, scrubbing with cleaning solutien is effective, ‘) () If initiel contamination is drive into paint, apply a solutien containing 5 peunds lye, 5 peunds boiler compeund, 1 pound starch and 10 gallons of water and serub with wire brush or scrape ts remeve all paint. Apply cleaning solution and flush thoroughly with water. "5MONITOR. kh. General Ship Decontamination Procedures. DNA a. Spreying ef the tepside prior to and during unavcidable exposure of ship to radieactive particles in the fall-cut area will probably eliminate rr G-III-3 1%>