Resonate Testing supports humidity, damp heat and combined temperature-humidity testing for aerospace, defence, electronics, rail, automotive, packaging, industrial and advanced engineering products using IEC 60068, MIL-STD-810, RTCA DO-160 and customer-defined requirements.
Resonate provides humidity testing and climatic environmental testing for products that need to withstand moisture, condensation and changing temperature conditions. Our chambers support humidity control from 10% to 98% RH, with temperature capability from sub-zero conditions through high-temperature exposure depending on the required profile and chamber selected.
Humidity testing exposes a product, assembly or material to controlled moisture and temperature conditions so engineers can assess reliability, corrosion risk, electrical performance, coating behaviour and long-term environmental durability.
Damp heat steady state: Holds defined temperature and relative humidity conditions to assess moisture resistance over time.
Damp heat cyclic: Cycles temperature and humidity to encourage condensation and reveal weaknesses in sealing, materials or finishes.
Combined temperature-humidity cycling: Uses changing temperature and RH profiles to simulate more demanding climatic exposure.
Functional checks: Allows agreed electrical, visual or performance checks before, during or after exposure.
Standards support: Supports IEC 60068 damp heat methods, MIL-STD-810 humidity and RTCA DO-160 humidity requirements.
Evidence generation: Produces controlled test records, observations and reporting to support qualification, acceptance or development decisions.
Environmental Testing
Corrosion and Salt Spray Testing
Rain Testing and Water Ingress Testing
Sand and Dust Testing
Ready to plan your humidity testing campaign? Send your standard, humidity profile, product details or customer specification for engineer review and receive guidance on chamber suitability, monitoring, dwell times and reporting requirements.
Humidity requirements can vary significantly by sector, standard and product risk. Whether you are preparing for qualification, validating an engineering build, investigating moisture sensitivity or planning customer acceptance, an early engineering review can help identify the most practical route through climatic testing.
Share your product description, applicable standard, temperature and humidity profile, operating condition, dimensions, mass, monitoring needs and reporting expectations. Resonate Testing can review chamber suitability, test setup and evidence requirements before quotation.
Steady-state damp heat and cyclic damp heat planning
Electronics, aerospace, defence, rail, automotive and industrial product support
Functional monitoring and visual inspection planning
Standards and customer requirement review
Integrated humidity, temperature cycling, altitude, salt fog, water ingress, vibration and shock testing campaign planning
Humidity testing is normally planned around the product’s operating environment, failure risks, known in-field issues or applicable qualification route. Depending on the programme, requirements may reference IEC 60068 damp heat methods, MIL-STD-810 Method 507, RTCA DO-160 Section 6 or a customer-specific environmental profile.
The objective is not simply to place an item in a humid chamber. The objective is to generate evidence that is relevant to moisture exposure, condensation risk, corrosion mechanisms, electrical insulation performance, seal integrity, coating behaviour and post-test functionality.
Humidity campaigns are typically tailored from the standard method and product requirement. Temperature level, relative humidity, cycle count, dwell duration, operating state, monitoring, recovery conditions and inspection points should be reviewed before testing begins.
Early review of the applicable standard can reduce rework, improve traceability and help ensure the resulting test evidence aligns with stakeholder expectations.
IEC 60068 environmental testing standards
MIL-STD-810 humidity method reference
RTCA DO-160 environmental conditions standard
| Standard / Guidance | Primary Focus | Typical Relevance to Testing |
|---|---|---|
| IEC/EN 60068-2-78 | Damp heat, steady state | Damp heat steady-state testing for products exposed to sustained humidity. |
| IEC/EN 60068-2-30 | Damp heat, cyclic | Damp heat cyclic testing for condensation and cyclic humidity exposure. |
| IEC/EN 60068-2-38 | Composite temperature / humidity cyclic | Combined temperature-humidity cyclic testing for more demanding climatic profiles. |
| MIL-STD-810 Method 507 | Humidity | Humidity testing for defence and ruggedised equipment environmental evaluation. |
| RTCA DO-160 Section 6 | Humidity | Humidity requirements for airborne equipment qualification programmes. |
| Customer specifications | Project-specific humidity requirements | Acceptance criteria, monitoring requirements and reporting expectations. |
Product dimensions, drawings, mass and handling constraints
Applicable standard, customer specification or qualification requirement
Required temperature and relative humidity set points and tolerances
Cycle count, ramp conditions, dwell duration and total exposure time
Operating or non-operating condition during exposure
Power, signal, data logging or sensor monitoring requirements
Functional checks, frequency interim inspections (if required) and post-test inspection criteria
Battery, hazardous material, stored-energy or moisture-sensitive safety information
Condensation limits, sealing concerns, corrosion indicators or material compatibility risks
Reporting, photographic evidence and witness requirements
Resonate Testing provides climatic chamber capability for steady-state humidity, damp heat cyclic and combined temperature-humidity cycling. Available humidity capability supports 10% to 98% RH, with chamber temperature capability from sub-zero conditions up to +180°C depending on the selected chamber and profile.
Typical planning inputs include the applicable standard or customer specification, temperature and RH profile, cycle count, dwell duration, unit dimensions and mass, operating or non-operating condition, functional monitoring needs, inspection points, report requirements and programme timescale.
| Specification | Capability |
|---|---|
| Chamber Type | Climatic chamber for humidity, damp heat and temperature-humidity cycling |
| Humidity Range | 10% to 98% RH, depending on chamber selection and test profile |
| Temperature Capability | Sub-zero conditions up to +180°C, depending on chamber and humidity profile |
| Supported Profiles | Steady-state damp heat, cyclic damp heat and combined temperature-humidity cycling |
| Typical Standards | IEC/EN 60068-2-30, IEC/EN 60068-2-38, IEC/EN 60068-2-78, MIL-STD-810 Method 507 and RTCA DO-160 Section 6 |
| Test Inputs | Temperature and RH profile, cycle count, dwell duration, operating condition, dimensions, mass and monitoring requirements, tolerances |
| Specimen Setup | Fixture, cable routing, power state, monitoring channels and inspection access agreed during planning |
| Functional Monitoring | Powered operation, signal checks, electrical monitoring or interim inspections can be planned where required |
| Typical Outputs | Achieved temperature and humidity records, observations, inspection notes, functional check results where agreed and test report outputs |
| Test Planning Support | Standards review, chamber suitability, profile feasibility, dwell strategy, monitoring, safety planning and reporting requirements |
Plan: Review the requirement, standard, temperature and RH profile, acceptance criteria, safety considerations and observations required.
Prepare: Confirm chamber suitability, fixtures, cable routing, instrumentation, monitoring points and functional checks.
Mount and instrument: Install the product, connect agreed channels and verify the setup before the climatic chamber is closed.
Condition: Stabilise the chamber at the agreed temperature and humidity conditions before dwell or cycling begins.
Cycle and dwell: Run the agreed humidity profile, including RH set points, ramps, temperature 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.
Relative humidity, or RH, is the amount of water vapour in the air compared with the maximum amount the air can hold at a given temperature. Humidity tests usually define exposure conditions as a temperature and RH set point.
Dwell time is the period a product remains at a defined temperature and humidity condition after the chamber has reached the agreed set points.
Temperature-humidity cycling exposes a product to changing temperature and RH conditions over repeated cycles. The plan should define the set points, ramps, dwell periods, cycle count and total exposure time.
Steady-state damp heat holds the product at a stable temperature and humidity condition for the agreed exposure period. It is commonly used to assess moisture resistance and material stability.
Condensation occurs when moisture forms on a surface because the surface temperature and surrounding humidity conditions allow water vapour to condense. If condensation limits matter, they should be stated before testing.
Monitoring may include temperature, relative humidity, sensor channels, data logging, power, signals and functional checks. The required channels and inspection points should be confirmed before the chamber is closed.
Typical outputs may include achieved temperature and humidity records, observations, plots, photographs, inspection notes, functional check results where agreed and the agreed test report or data pack.
During humidity testing, moisture can affect electrical insulation, coatings, seals, adhesives, polymers, metals and exposed interfaces. Condensation risk should be reviewed early when the profile includes cyclic damp heat, rapid temperature changes or recovery periods.
If the product includes moisture-sensitive materials, electronics, coatings, bonded joints, optical surfaces or corrosion-critical finishes, define inspection points, acceptance criteria, functional checks and any limits on visible condensation before quotation.
Products exposed to moisture often need more than one climatic assessment. Coordinating humidity, damp heat, temperature cycling and related environmental checks within one campaign helps reduce handover friction, align setup decisions and keep evidence traceable across the full programme.
For projects that also need salt fog, rain, water ingress or other environmental testing, review the related 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, relative humidity and agreed monitoring data
Plots showing the achieved humidity profile, ramp periods, dwell points and RH 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.
