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' '��� UNITED STf,�cS TESTING CGIJ�rtit�Y, INC. <br /> ^ <br /> LA 12404-q <br /> � , <br /> 5 <br /> t • <br /> { • <br /> � • <br /> PREPARI�TION AND CONDITIONING <br /> I ^.'he carpet sample was cut into three (3) , 10" x 92" <br /> specimens to fit the specimen mounting tray. Each <br /> # specimen was backed with 1/9" asbestos/cement board <br /> and mounted_in the specfinen tray. ' <br /> The specimen�; Neze ��on�'itioned at 70 + 5°F and 50• <br /> i . . — <br /> . relatfve humidity e.»d allowed to come to equilibr:um. <br /> ( <br /> r • <br /> C. <br /> � <br /> � TEST PROCEDURE <br /> k ,. The test chamber was thoroughly pre-heated and allowed <br /> � to stabilize with the radiant panel at a black body tempera- <br /> r ture of 500 + S°C. The pilot bw�ner was ignited and the <br /> ;�:•;� — <br /> _ specimen inserted into the chamber. After a two-minute pre- <br /> + <br /> ; �heat, the pil�t burner flame was placed in contact with the <br /> ' specimen for ten minutes, then removed. The test uas continued <br /> • until all flaming ceased. The distance burned was me�esured <br /> and converted to Critical Radiant Neat Flux at flame out. <br /> The operation of the test chamber was checked by measuring the � ;`?- ' , <br /> black body and chamber temperatures prior to start of test, f a.' <br /> t ' <br /> . j '. <br /> i <br /> i , ' <br /> � , - <br /> P.,ye 3 � ':Yi <br />