Series 8 Temperature Extreme Range Test Report

MIL-STD-810H Method 501.7 (High Temperature) and 502.7 (Low Temperature) test the ability of equipment to operate in extreme thermal environments. For protective cases used in arctic, desert, and aerospace applications, this test is critical. Our Series 8 cases were tested across the full operational range of -40°C to +70°C.

Test Procedure

Method 501.7 — High Temperature

Operational: +49°C for 4 hours (constant), then +71°C for 4 hours (constant)
Storage: +71°C for 48 hours
Functional check: Every 2 hours

Method 502.7 — Low Temperature

Operational: -40°C for 4 hours (constant), then -51°C for 4 hours (constant)
Storage: -51°C for 48 hours
Functional check: Every 2 hours

Test Results

Test phase	Temperature	Duration	Latch function	Gasket function	Pass
Operational high	+49°C / +71°C	8 hours	Normal	Sealed	✓
Storage high	+71°C	48 hours	Normal	Sealed	✓
Operational low	-40°C / -51°C	8 hours	Normal (slight stiffening)	Sealed	✓
Storage low	-51°C	48 hours	Normal (slight stiffening)	Sealed	✓

Customer Impact

The -40°C to +70°C operational range enables use in:

Arctic operations (Northern Canada, Alaska, Russia, Scandinavia)
Desert operations (Middle East, North Africa, Australia)
Aerospace (cargo holds, ground equipment)
Polar research stations (Antarctic, Greenland)

Frequently Asked Questions

What is the operating temperature range?

-40°C to +70°C operational, -51°C to +71°C storage. The full MIL-STD-810H Methods 501.7/502.7 range.

Does the gasket work in extreme cold?

Yes — the TPU gasket is rated to -51°C without loss of elasticity.

What is the storage temperature?

-51°C to +71°C, suitable for global transport and warehousing.