a SAFE INSTRUMENT STOC.WILE SEORET In generzl, RECO LAENDATIONS the Sleld survey instmi ats used at ofA Noronr. are suiteble pilot models. Stock pile recomuendations are for instruments similar to those nov in manufacture but with improvements as indicated in the broic letter paragraph & (c}). The manufacturers of cxisting instrumenes along with the manufacturers number are given. I - FIELD INSTRIMENTS. Dosimeter, Pocket Electrometer, 0-200nr 200 A. 0. Beciman Co. Canbridg,e Instrument Co. Kolly Koett - K-100 Dosimeter, Pocket Electrometer, O0-5-r 10G None under manufacture Dosimeter, Pooket Electroneter, Kelly-Keett - K-160 9-50r 20 nN an Dosimeter Charger A. 0. Beckman Co. Cembridge Inatrucant Co. Kelly-Koett, K-125 Geiser Mucller Surviv eter, Maxinun 100 range of 20 mr/hr Instrunent Dev lonnent Laborsztocics, 2610 National Technical Cavoratorics, MA-5 Victoreen Instrmuient Co., 263-A Tonizatioa Chember Survey Meter with © 65 ranzse of at least 2500 mz/hr National Technicel Laborstories, MC-6 Victoreen Instrument Co., 247-A Tonization Chembcr Survey Uotcr for high range of 50,000 mr/hr 15 Victoreen Instrurncnt Co., 247-ASp(25,000 .r/hr) Ionization Chamber Dosimetor with warning buzzer at 200 mr. National Technical Lavcratories, M X-7 ae 50 nel Enclosure (B)