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' 5.4/CAN <br /> Fire Protection 'I-2-rs hour ratings <br /> Floor/ceiling assembiies using Ham6ro D-500 have been successfully tested by independant authonues, res � <br /> trained and unrestrained conditions, and the tollowing fire resistance ratings were issued by Unde.rwriiers La- <br /> boratories Inc. <br /> Design No. Rating Slab Thickness Ceiling Beam Ratlna <br /> lhr) (inl <br /> Gypboard <br /> G 531 1 2'fi 1/2 2 <br /> 2 2�a 1/2 2 <br /> ` G525 3 3'/a 5/8 3 <br /> G 524 2 2 F' 112 2 <br /> 3 3'h' 1/2 2 <br /> Suspended or panel <br /> ' --� G229 2 3 ------- ., — ------ � <br /> 3 4 ' 3 <br /> G 228 2 3'/. " Z <br /> G 227 2 2'k " 3 <br /> G213 2 3 " 3 <br /> 3 4 " 3 <br /> G 003 2 2'b " — <br /> ' Normal and lightwaight <br /> Sound Engiheered-57'C 5'� <br /> WORLD'S " <br /> SIC 51 <br /> FINEST <br /> L%CFLtENi Mf4iJa[DDH <br /> ACOUSTICAL Hoist ioc su�r <br /> NIANOL �N Slf Of 5) <br /> PRQPERTfES. isr.�m� <br /> ASEi{lCi�'�! <br /> A. IntleOantlent iesu in a comPle�c-0 +s.. <br /> apanment 6uilding in atwrtlance with sTc sxo��e <br /> ASTM-E336�b7T, as we�l as laboratory sns: <br /> I testing, ASTM�50�70, heve given the c000 <br /> HamMo D�5W Floor Sys+nm on rti bare ��ze <br /> conciete Hoor and gYP ceiling, a saund �"�"�� � <br /> vansmiss�on cless IS7C1 57. The� <br /> superior qualities have been cmfirmed ae . . - <br /> in [he U.S., Canaaa entl Europe, by ; m�%� . .. <br /> indepentlent end Bovernment labora- m� � . � ° � , <br /> lor�¢5. :'�O[ n� � s.FCM f �.. �, �,. . . <br /> B. The Hambro sountl testing prrK.ram i, <br /> '�.:� t ';}�:: <br /> is canvtleretl to be one nl �h�� most "' ' <br /> Nabo�are antl signrfirant fp �en�� system <br /> in Ihe wodd. The goal of the system <br /> wFS 10 Obl9i0 if5 fOJ'Id p�Oplrt�CS <br /> without the nend at adtlitives or ecces� �1 � . - ... . <br /> wr•es, whieh il improperly mstalletl or o • . . : � _�_ <br /> inedvenently omined would desiroy o• p - � ' �� � '-� <br /> impetle sauntl Queiiues. Hambro ao �„ qrroe�ur. JL'�=Y_ �� `=' <br /> complishes this in that iLs so�ntl Qua- sui� �� .�_\�' . �``� � � <br /> Lties are mherent m its p�ysmal make� V►�.G� �jy� '' ��� <br /> �p. . ......_ . <br /> �— _—___— <br />