Seagate ST31000528AS Barracuda 7200.12 SATA Product Manual - Page 21

2.8 Environmental specifications 2.8.1 Ambient temperature Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions. Operating: Non-operating: 0° to 60°C (32° to 140°F) -40° to 70°C (-40° to 158°F) 2.8.2 Temperature gradient Operating: Non-operating: 20°C per hour (68°F per hour max), without condensation 30°C per hour (86°F per hour max) 2.8.3 Humidity 2.8.3.1 Relative humidity Operating: Nonoperating: 5% to 95% non-condensing (30% per hour max) 5% to 95% non-condensing (30% per hour max) 2.8.3.2 Wet bulb temperature Operating: Non-operating: 37.7°C (99.9°F max) 40°C (104°F max) 2.8.4 Altitude Operating: Non-operating: -304.8 m to 3,048 m (-1000 ft. to 10,000+ ft.) -304.8 m to 12,192 m (-1000 ft. to 40,000+ ft.) Barracuda 7200.12 Serial ATA Product Manual, Rev. G 15