+) teem gam ty ~ 49 maar ae Nahe SRI eoOE RUE att ERA cetaaten = an accident wherein surfaces are contaminated with hot particles, it is necessary to have a standard to apply to decontamination measures, The number of particles that can be resuspended from surfaces has been the subject of a number of experiments. These experiments have usually resulted in the datermination of a resuspension factor (RF). The RF is defined by: RF (m7) = concentration in air (uCi/s3) - R. = L. > concentration on Katnran has values reviewec He indicates that, = . surface ws (uCi/m-) the data obtained on "rgported {RF} RF values for slutoniun ang its compounds range over 11 ) orders of magnitude." This ll orders corressonds to values between lo7*+ to lo~tl mol raat as : Kathren indicates that, - 0 : > ne -1 sa: : "an RF of 1074 m4, although . Bt consarvative is agorooriate.""* member of the Danish scientific sue . . soya: . @5. Guring tne Thule celiseration. : » ose . Langnam incicates that a team used an er=1973 acl Cs. we would recommend what . 3/ KXathren, R.L., “Towards interim accezzabie surface contamination levels for environszental Pudg," 2N07-Sa-13519, Battelle Northwest Laborateryv, Richland, Washington, Asril 1968, cos. 3-4. 3 ID w i) 23/ Langhan, Wright H., Od. cit., p. 3. The Thule Deliderations refer to the delibaraticns following the accidental erash of a 8-52 bomber carrvinz = nuclear w2anons near Taule D Tne high exsicsives in %: e Aix Force Basé in Green anland, tons Getonated and disnarsaa the olutoniun. Se TN on ee ere 1