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_ �. <br /> �A� �lii� � <br /> ��� � <br /> If�,'ti�' • <br /> �t`r�,��;.,,;�6: Wornock H¢rsey Internntionol Inc. <br /> L�,• ��.,ss ,:�' •K,.. <br /> '� �' ri�.�;:'�;;;�•:" <br /> f-=,. P.O. Box 1078. AntIOCh,Cali(ornla 94509 - 0107 <br /> �'�'�' "`'' ` �,-�'��;�r. <br /> �' ' �1`� (415)432•7344— TcICx 33�77�J7 ' <br /> �:_.�:,�`'�,�:;.� <br /> October 26, 1984 �� <br /> Mr. Peter Janopaul , Jr. I <br /> Graystone Block Company, Inc. <br /> 316 River Road <br /> Modesto, Calif. 95351 i <br /> Dear Mr. �anopaul , Jr. , <br /> This letter is to confirm that on October 19, 19II4, The Antioch, <br /> California Fire Test Laboratory of Warnock Hersey conducted a I <br /> four (4] hour Pilot Scale Vertical fire test on your o-iall con- <br /> struction. <br /> The 48 inch high by 60 inch wide test assembly was constructed <br /> from 10 inch by R inch by 16 inch Graystone doub�:� cavity masonry <br /> units. (see attached I.C.B.O. report) The cavit es on the un- <br /> exposed hz,lf of the assembly were filled with standard weight <br /> concrete. The cavities on the fire exposed half of the assembly <br /> were filled with urethane foam. The assembly was force - dried <br /> to a bone-dry condition before the foam was added for the fire <br /> test. <br /> After four hours of exposure to a Standard ASTt4 E-119 time-tem- <br /> perature curve, the average unexposed face temperature rise was <br /> approximately 160°F with a maximum unexposed face temperature <br /> rise of 180°F. <br /> After the four-hour fire exposure was completed, che test assembly <br /> was moved from the furnace and positioned for a standard hose <br /> stream test. A standard hose streain test was conducted for 46 <br /> seconds witl� a pressure of 45 psi measured at �thc base of the <br /> nozzle. <br /> • The hose stream washed the exposed face lialf of the test assembly � <br /> off, however no water penetrated the wiexposed �ace half of the <br /> assembly. <br /> � <br /> �1) ' <br /> ; <br /> - I <br />