/ ,,. . .. ,,. Downloaded from https://www.everyspec.com MIL-STD-2031(SH) 40.2 Temperature nnd humidity. Prior to testing, the full-lined test room shall be conditioned for at least 24 hours nt a relative humidity between 20 and 60 percent, and a temperature of 23 t 5 (73 z 10 “F). 403 Fire conditions. The fire source shall bc positioned on the floor snugly against one near corner of the test room. A flow rate of 0.64 cubic feet per minute (ft3/m) methane shall be used to produce a constant heat input to approximately 640 BTU per minute for the duration of the test. 40.4 Thermocouple dntn. The test data from the four thermocouples shall be recorded as a continuous function of time. SO.
REPORT 50.1 Report contrncts. Test reports shall include the following: a. Sufficient nomenclature and code markings to identify the malerial evaluated and the manufacturer b. Time to flashover, it’it occurs. Flashover is characterized by thermal flux levels equal to or greater than 2 watts per square centimeter at the floor level. This corresponds to interior temperatures of 6(IO ‘C (1110 or one of the doorway -suroments reaehing S00 (9.30 T), whichever ocxurs first. Flashcwer shall not Oeuur within 14)fninuma. ,!, ,,. . . . .-. d. A video record shall be taken showing the test set-up, the point of maximum involvement and after the fire has been extinguished. 21