Altitude Testing

MIL 810 Altitude Compliance Testing

Change in pressure is one of the many factors that manufacturers must take into consideration when testing their products or equipment. Altitude compliance testing evaluates environmental characteristics such as humidity, drastic changes in temperature, height, and other conditions.

Keystone Compliance creates an accurate test plan to eliminate expensive over-testing. We are in constant communication throughout the entire test process and provide comprehensive reports shortly after completion of the military environmental standard. Additionally, our engineers take pride in having a strong reputation for helping customers achieve their MIL-STD product certifications.

Request a quote and find out first hand about our competitive pricing, timely process, and outstanding reputation. Have a question about MIL-810 testing? Contact us or call (724) 657-9940 and we will determine the best course of action.

Summary of Altitude Compliance Testing

Altitude testing, also referred to as low-pressure testing, per MIL-STD 810, is performed to ensure that equipment can withstand and operate in a low-pressure or high-altitude environment.

Altitude testing is intended to be used for air shipment of material in a plane, equipment designed for installation at high ground elevations, and explosive decompression due to aircraft damage.

Four different procedures are generally used when low-pressure regulatory compliance testing.

Procedure I is used for material transported or stored at high ground elevations. Procedure II determines the performance of a material under low-pressure conditions. Procedure III determines if a rapid decrease in pressure will cause a material reaction. Procedure IV involves an instantaneous decrease in pressure of the surrounding environment.

When compliance testing for multiple environmental conditions, this method generally occurs early in the life cycle, because it has limited damage potential. However, other environmental tests can add to the effects of low pressure on the test item. Therefore, other tests may have to be conducted before this method.

Why is Altitude Testing Important?

Manufacturers of any device that is transported by air should consider the impact high altitude testing could have on their products. High altitude can create problems such as:

  • Leakage of gases or fluids from gasket-sealed enclosures
  • Rupture or explosion of sealed containers
  • Change in physical and chemical properties of low-density materials
  • Erratic operation or malfunction of equipment resulting from arcing or corona
  • Overheating of equipment due to reduced heat transfer
  • Evaporation of lubricants
  • Erratic starting and combustion of engines
  • Failure of hermetic seals

Keystone’s Altitude Testing Equipment and Capabilities

Keystone Compliance operates an altitude test chamber capable of simulating altitudes up to 100,000 feet while accommodating temperature conditioning from -70 to +100 degrees Celsius. Our engineers can also provide custom setups for altitude, rapid, and explosive decompression tests and other regulatory MIL810 standards.

Expert Regulatory Altitude Compliance Testing

Altitude testing is just one of many climatics testing services our lab is equipped to handle. Keystone Compliance assists manufacturers with altitude testing to determine a products’ ability to withstand the harsh low-pressure environment of high altitude.

Please contact us for more information on how Keystone Compliance’s altitude testing lab can assist you with your low-pressure test needs.

Altitude Test Specifications: