The Low Pressure (Altitude) Test is designed to test the performance, reliability, and durability of a sample under low atmospheric pressures. It describes a test method to determine whether a material will perform in low-pressure environments or withstand rapid pressure changes.

At our testing facility, we operate an altitude test chamber capable of simulating altitudes up to 70,000 feet while providing temperature conditioning between -54 and +80 degrees Celsius. Special setups for high-speed and explosive decompression tests are standard procedures.

The Low Pressure (Altitude) Test is conducted to ensure that equipment can withstand and operate in low-pressure testing or high-altitude test environments. Altitude testing is intended for equipment designed for use in aircraft, high-altitude installations, and for explosive decompression due to aircraft damage. Manufacturers of any device transported by air should consider the impact of high altitude tests or low-pressure tests on their products.

The MIL-STD-810G Method 500.5 standard includes four procedures: air transport storage, air transport operation, rapid decompression, and explosive decompression. Depending on the intended use, low-temperature tests at high altitudes are also applied within this scope. Ambient temperatures at higher elevations are often much lower than those in the test laboratory. This low temperature can be advantageous for cooling for a computer to operate. For many materials and equipment, a test duration of at least one hour is considered sufficient.

During the Low Pressure / High Altitude Test, there should be no air intake/exhaust between our High Altitude Test Cabin and the environment. To allow functional testing during the test, all distributions of the sample to be tested (communication, power cables, etc.) are brought out of our High Altitude Test Cabin to the laboratory environment through hermetic passages from the side ports.