Downloaded from https://www.everyspec.com I MIL-STD-81OC TABLE 504.l-I. Equipment Categories for Temperature-AltitudeTests 4 I 1 EQUIPMENTMOOE,- ~UIPMENT ALTI TUOCRANGE TEMPERATURE ATEGORY (F,) , ,,- (“C) OPERATING .,. . NON- k CON1lN- INIE lT- Uaus Y TEM1 5 SHOII- PERAIING IIME 1 See Level o to55 x to 10,000 -62i.85 . .# -40to55 K L Sea Level 55 to 71 x to 10.000 -62 to 85 . 2 ., - ,3 Sea Level -40to 55, x 3 to 55 to 71 15,000 x -62to85 -54to55 x Se.Level 55to71 x 30:;00 -62to85 x 4 x 5 -54 to 55 x s.. Level 55 to71 x S$ooo -62t.85 -541071 x x 4 6 s,. Level to 71 to 95 x 70,000 -6210 95 x . 7 sea Level to -54 to 95 x 100,000 (95°C Con+inwa.s S*. 95 10 125 x Level Operation) . .
125 to 150 x seaLevelto ..54to125 x 1!)9,000 (125°c C.ntlnm,us S*73 125 10 150 x Level operation) 1.62 +. 125 l-i. x 8 lrlo102:0 1- 62 t. 170 I 1. x x X - Applicable equipment mode at specified temperature and altitude Notes: 2. Ten minutes of operation followed by a fifteen-minutede-energized period. 1. Thirty minutes of operation followed by a fifteen-minutede-energizedperiod. 3. Air transportationto 15,000 ft except where a sudden loss of pressure in the cargo compartment could cause failure of the test item which could damage the aircraft, the equipment shall also b.etested to withstand an altitude of 40,000 feet, non-operating. 4 ~ MSTHOD 504.1 504.1-2