Resonate Testing supports altitude and combined temperature-altitude testing for aerospace, defence, space, battery, packaging and electronic products using customer-defined requirements and recognised standards including RTCA DO-160, MIL-STD-810, IEC/EN 60068 and UN 38.3.
Resonate provides altitude and temperature-altitude testing services for aerospace, defence, battery, electronics, packaging and advanced engineering programmes. Our altitude testing UK and altitude testing Ireland capability supports qualification, verification and reliability evidence through controlled low-pressure and combined environmental testing. Combined with vibration and shock testing services, it offers a coordinated route for products exposed to flight, high-altitude operation or air transport conditions.
Altitude testing exposes products to reduced atmospheric pressure so teams can understand how equipment behaves during flight, high-altitude operation, air freight, storage or rapid pressure change.
Low-pressure simulation: Recreates the reduced pressure conditions associated with altitude exposure.
Temperature-altitude testing: Combines pressure and temperature to reveal issues that may not appear in single-condition tests.
Aerospace and defence use: Supports avionics, airborne systems, electronics, electromechanical assemblies and high-reliability equipment.
Battery and packaging relevance: Supports UN 38.3 altitude simulation, air transport and shipping-related pressure exposure requirements.
Functional checks: Allows agreed electrical, telemetry or operational checks before, during or after exposure.
Evidence generation: Produces pressure, temperature, observation and reporting outputs to support qualification, compliance or development decisions.
Vibration Testing
Shock Testing
Environmental Testing
Humidity Testing
Corrosion and Salt Spray Testing
Rain Testing and Water Ingress Testing
Sand and Dust Testing
Ready to plan your altitude testing campaign? Send your requirement, specification, temperature-altitude profile or product details for engineer review and receive guidance on setup, monitoring, standards and programme readiness.
Altitude requirements can come from aerospace, defence, battery, packaging or customer-specific specifications. Whether you are validating an engineering model, preparing for qualification, planning acceptance testing or checking transport robustness, an early engineering review can help identify the practical route.
Share your product description, dimensions, mass, operating mode, pressure or altitude requirement, temperature limits, functional checks and applicable standard. Resonate Testing can review setup, monitoring and reporting expectations before quotation.
Qualification and acceptance testing support
Aerospace, defence, avionics, battery and electronics assessment
Low pressure, temperature-altitude and functional monitoring planning
Standards and customer requirement review
Integrated temperature, humidity, vibration, shock and environmental campaign planning
Altitude testing is usually tailored to the product, operating environment and compliance route. Requirements may reference RTCA DO-160 Section 4, MIL-STD-810 low pressure methods, IEC/EN 60068 temperature-altitude tests, UN 38.3 battery transport testing or a customer-defined profile.
The objective is not simply to reach a target altitude. The objective is to generate evidence that is relevant to the equipment, use case and acceptance process. Pressure level, temperature range, dwell periods, ramp rates, functional monitoring and reporting requirements should be reviewed before testing begins.
Combined temperature-altitude testing can be especially useful where electronics, seals, enclosures, batteries or assemblies may respond differently when low pressure and temperature are applied together.
Early review of applicable standards can reduce rework, improve traceability and help ensure the resulting test evidence aligns with stakeholder expectations.
RCTA DO-160 Section 4 Guidance
MIL-STD-810 low pressure methods
IEC/EN 60068 environmental testing
| Standard / Guidance | Primary Focus | Typical Relevance to Testing |
|---|---|---|
| RTCA DO-160 Section 4 | Temperature and Altitude | Temperature and altitude testing for airborne equipment and avionics. |
| MIL-STD-810 Method 500 series | Low pressure / Altitude | Low pressure / altitude exposure for defence, aerospace and ruggedised equipment. |
| IEC/EN 60068-2-13 | Low air pressure | Low air pressure environmental testing for components, assemblies and products. |
| IEC/EN 60068-2-39 | Combined tempreture, low pressure and humidity | Combined temperature, low pressure and humidity environmental testing. |
| UN 38.3 Test T.1 | Altitude simulation | Altitude simulation for lithium cells and batteries during transport qualification. |
| DEF STAN 00-35 | Defence environmental testing | Environmental testing guidance for defence equipment and service environments. |
| Customer specifications | Bespoke environmental profile | Customer specifications |
Hardware dimensions, drawings and keep-out zones
Mass, handling constraints, orientation and chamber setup requirements
Required hot and cold temperature limits
Required altitude, pressure level or applicable standard
Pressure ramp rates, temperature ramp rates, set points and dwell times
Power, signal, RF, data or thermocouple feedthrough requirements
Telemetry channels and functional checks during test
Battery, pressure vessel, hazardous material or stored-energy safety information
Cleanliness, outgassing, contamination or bakeout concerns
Reporting, photographic evidence and witness requirements
Resonate Testing provides engineer-led altitude and temperature-altitude testing for aerospace systems, defence equipment, avionics, electronics, batteries, packaging and high-reliability assemblies across the UK and Ireland. Programmes can include low-pressure exposure, combined temperature-altitude profiles, air transport simulation and qualification support depending on the agreed specification.
The laboratory supports development, validation and compliance testing for products exposed to flight, high-altitude operation, reduced pressure, storage or transportation environments. Test activity can be planned against recognised standards such as RTCA DO-160, MIL-STD-810, IEC/EN 60068 and UN 38.3, as well as customer-defined pressure and temperature profiles.
Successful altitude testing requires more than reaching a target pressure. Monitoring and verification may include pressure and temperature data, thermocouples, customer telemetry, electrical interfaces, functional checks, pre-test inspection and post-test observations. Pressure level, equivalent altitude, temperature limits, ramp rates, dwell times, tolerances and abort criteria should be reviewed before the campaign begins.
For high-value equipment, the chamber setup is central to the quality of the test. Product dimensions, mass, orientation, cable routing, feedthrough needs, operating mode, temperature limits and safety information should be reviewed early so the item can be configured safely and monitored through the intended profile.
Resonate’s altitude chamber supports simulated altitude up to 100,000 ft, temperature exposure from -70°C to +180°C and ramp rates up to 5°C/min, enabling standalone altitude and combined temperature-altitude testing for qualification, verification and reliability evidence.
| Specification | Capability |
|---|---|
| Chamber Type | Altitude / temperature-altitude chamber |
| Simulated Altitude | Up to 100,000 ft |
| Temperature Range | -70°C to +180°C |
| Ramp Rate | Up to 5°C/min, subject to product mass, setup and agreed profile |
| Test Modes | Altitude, low pressure, temperature-altitude and air transport simulation profiles |
| Typical Applications | Aerospace, defence, avionics, batteries, electronics, packaging and high-reliability assemblies |
| Applicable Standards | RTCA DO-160, MIL-STD-810, IEC/EN 60068, DEF STAN 00-35, UN 38.3 and customer-defined requirements |
| Functional Monitoring | Telemetry, electrical interfaces, powered checks, operational checks and post-test observations where agreed |
| Measured Outputs | Pressure, equivalent altitude, temperature, dwell periods, observations and agreed functional evidence |
| Test Planning Support | Altitude level, pressure profile, temperature set points, ramp rates, dwell periods, feedthrough needs, safety planning and reporting |
Plan: Review the requirement, standards, acceptance criteria, safety considerations and success measures.
Prepare: Confirm product setup, instrumentation, feedthroughs, telemetry and functional checks.
Install and instrument: Position the product, connect agreed channels and verify the setup before chamber closure.
Reduce pressure: Run the agreed altitude or low-pressure profile under controlled conditions.
Condition and dwell: Apply the agreed temperature-altitude profile, including ramp rates, set points and dwell periods.
Functional checks: Power or operate the hardware at defined points when this is part of the agreed plan.
Review and report: Check achieved conditions, observations, plots, photographs and agreed outputs.
Altitude testing can affect seals, venting, batteries, enclosures, displays, electronics, fluids, pressure-sensitive materials and powered assemblies. Products should be reviewed for stored energy, pressure differentials, trapped volumes, vent paths and safe operating limits before testing begins.
Temperature-altitude profiles may add further stress through thermal expansion, condensation risk during transitions, cable routing constraints and functional operation at defined points. Battery, hazardous material, pressure vessel or powered test items should be identified early so the appropriate safety review and monitoring approach can be agreed.
Aerospace, defence, battery and high-reliability products often need more than one environmental test. Coordinating altitude, temperature-altitude, vibration and shock within one campaign, at one test location, helps reduce handover friction, align documentation and keep the engineering review connected across the full programme.
For projects that also need mechanical environmental testing, review the related vibration and shock services before finalising the campaign sequence.
Outputs are agreed before the test so the evidence matches the programme need. A typical package may include:
Recorded temperature, pressure and agreed telemetry data
Plots showing the achieved altitude or pressure profile, ramp periods, dwell points and temperature conditions
Observations from setup, test execution and post-test review
Photographic evidence where agreed
Confirmation of functional checks completed during the profile
An agreed test report or data pack aligned to the quotation scope
Book testing for products, components, enclosures, electronics, packaging and industrial equipment. Use the contact route to share the requirement, drawings, specification, test profile, customer standard or failure concern for review.
Whether you’re looking to contact us for the first time or have another testing requirement, we’d love to hear from you.
