AS wk ~ Guat painted white, some were painted with aluminum paint, others were covered -oaf APA Sb A with glass wool, and still others had wooden sun-shades erected, The GT temperature inside these containers was measured daily with maximum and minimum theraometers and it was determined that the white paint proved ix) | the best protection from the solar radiation, we. of considerable assistance in keeping the containers cool, ¥ studies were conducted to determine the maximum and minimum tenp- ly Similar eratures and within the Yards and Docks and Corps of Engineers structures - MA KA ~ -_~ The prevailing wind was and within the land and water test aninal containers. Film badses were exposed for varying periods in the sunlight to be used as controls for * the badges exposed during the tests, The two Chemical Corps projects under the cognizance of TU 7.6.6, the measurement of particle size by means of cascade impactors and the Rh + test of collective protectors for the removal of radioactive materials involved somewhat complicated installations within the OCE structures. The cascade inpactors were battery operated and involved relatively = ue Simple installation, but unfortunately, in two of the structures slight a alterations were required in order to attach the inlet of the cascade wae aes impactor to the one-inch pipe through the wall of the structure, Sr However, installation of four cascade impactors was accomplished and the equipment t a operated satisfactorily. ~. ee Im The test of the collective protectors was sauewhat more complicated —_ since it was necessary to install some means of measuring the con- eS centration of radioactive materials in the effluent air strean of the ca vf protector, s , * . , cya This was to be accomplished by means of a ratenmeter with a beta sensitive gseiger tube in the air stroam and an Esterline Angus ~ Wp ooh. 7 ais ass Ta at. 7 x ene i. epee etm tet SD ye - aren re ~- Ted EES “ a et TT IE, ND ne PN Ne . € ee ee , ae - ~aek.. won a - Ee : were se acesRemedy (4 mo mee ae ee ee ee rr ae