Seagate ST9100828AS manual Temperature gradient, Humidity 2.10.3.1 Relative humidity, Altitude

Above 1,000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.

Operating:	0° to 60°C (32° to 140°F)
Nonoperating:	–40° to 70°C (–40° to 158°F)

2.10.2Temperature gradient

Operating	20°C per hour (68°F per hour max), without condensation
Nonoperating	30°C per hour (86°F per hour max), without condensation

2.10.3Humidity

2.10.3.1Relative humidity

Operating	5% to 90% noncondensing (30% per hour max)
Nonoperating	5% to 95% noncondensing (30% per hour max)

2.10.3.2Wet bulb temperature

Operating	30°C	(86°F max)
Nonoperating	40°C	(104°F max)

2.10.4Altitude

Operating	–304.8 m to 3,048 m (–1,000 ft to 10,000+ ft)
Nonoperating	–304.8 m to 12,192 m (–1,000 ft to 40,000+ ft)

Momentus 5400.3 SATA Product Manual, Rev. D 11