Simulate Extreme Climatic Conditions to Validate Product Reliability

Temperature and humidity changes are among the most common environmental stresses that products experience during manufacturing, transportation, storage, and operation.

LIB temperature and humidity testing solutions help manufacturers evaluate product performance under extreme climatic conditions, including high temperature, low temperature, humidity exposure, rapid temperature changes, and thermal stress cycles.

From automotive electronics and lithium batteries to aerospace components and consumer electronics, LIB environmental chambers provide precise and reliable testing environments to identify potential failures before products enter the market.

With advanced temperature control technology, customizable configurations, and complete after-sales support, LIB helps global manufacturers improve product reliability and meet international testing requirements.

Temperature and Humidity Testing Methods

Different products require different environmental tests depending on their application, materials, and industry standards.

LIB provides environmental simulation solutions for the following temperature and humidity related tests:

High Temperature Test

High temperature testing evaluates whether products can maintain their mechanical, electrical, and functional performance when exposed to elevated temperatures.

Common standards:

· IEC 60068-2-2

· MIL-STD-810H Method 501

Low Temperature Test

Low temperature testing evaluates product reliability under cold conditions.

Common standards:

· IEC 60068-2-1

· MIL-STD-810H Method 502

Constant Temperature and Humidity Test

Constant temperature and humidity testing exposes products to controlled temperature and moisture conditions for extended periods.

Common standards:

· IEC 60068-2-78

Temperature Cycling Test

Temperature cycling testing evaluates how products withstand repeated changes between high and low temperature conditions. During real-world operation, many products experience continuous temperature fluctuations.

Common standards:

· IEC 60068-2-14

· JESD22-A104

· MIL-STD-810H

Thermal Shock Test

Thermal shock testing is designed to expose products to sudden temperature changes between two extreme conditions. Unlike temperature cycling, which gradually changes temperature, thermal shock transfers the test specimen rapidly between hot and cold zones.

Common standards:

· IEC 60068-2-14

· MIL-STD-810H Method 503

Rapid Temperature Change Test

Rapid temperature change testing evaluates product reliability when exposed to fast temperature transitions.

Common standards:

· IEC 60068-2-14

· ISO 16750-4

Combined Temperature and Vibration Test

Vehicles, aircraft, industrial equipment, and transportation systems often expose components to combined environmental stresses.

Applicable standards:

· IEC 60068 series

· MIL-STD-810H

· ISO 16750

High Temperature Aging Test

High temperature aging testing uses elevated temperatures to accelerate material degradation and estimate product lifetime.

Common standards:

· IEC 60068-2-2

· JEDEC reliability testing standards

Drying Test (Industrial Oven / Vacuum Oven)

Drying testing removes moisture from materials and components, or cures coatings and adhesives, using either standard industrial hot-air drying ovens or vacuum drying ovens for heat-sensitive or moisture-critical materials that require low-oxygen or low-pressure drying conditions.

Common standards:

· IEC 60068-2-2

· JEDEC J-STD-033 (moisture sensitivity bake)

Altitude / Low Pressure Test

Altitude testing evaluates product performance under reduced atmospheric pressure, simulating high-altitude operation, air transportation, or aerospace conditions where pressure differences can affect sealing, electrical insulation, and mechanical structures.

Common standards:

· IEC 60068-2-13

· MIL-STD-810H Method 500

Battery Safety & Abuse Test

Battery safety and abuse testing evaluates the behavior of lithium batteries and battery packs under extreme or abusive conditions, including overcharge, external short circuit, crush, nail penetration, and thermal runaway, to verify safety performance before market release.

Common standards:

· UN 38.3

· IEC 62133

· UL 2580

· GB 38031

Environmental Stress Screening (ESS) Test

Environmental Stress Screening testing applies rapid temperature cycling, often combined with random vibration, to precipitate latent manufacturing defects in electronic assemblies before they are shipped, without damaging good units. It is commonly used as a production-line screening process rather than a design qualification test.

Common standards:

· MIL-STD-2164

· IEST-RP-PRC-001

Damp Heat Cyclic Test

Damp heat cyclic testing exposes products to repeated 24-hour cycles of high humidity combined with temperature variation, including condensation during the temperature drop phase. It is distinct from steady-state humidity testing and is used to evaluate corrosion, insulation degradation, and material swelling under fluctuating humid conditions.

Common standards:

· IEC 60068-2-30

Temperature and Humidity Testing Equipment Selection Guide

Choosing the correct environmental chamber depends on: Required temperature range, Humidity requirements, Temperature change rate, Sample size, Test standard, Industry application, Test duration

LIB provides different environmental simulation chambers to meet various testing requirements.

Key Technical Specifications

	Recommended Product	Key Features
	Benchtop Environmental Chamber	• Compact tabletop design for limited laboratory space • Temperature range: -70℃ to +150℃ • Humidity range: 20%–98% RH • Suitable for small components and research testing • Quick delivery
	High Low Temperature Chamber	• Temperature range options: -20℃~+150℃ / -40℃~+150℃ / -70℃~+150℃ • Temperature fluctuation: ±0.5℃ • Temperature uniformity: ±2℃ • Available capacities: 100L–1000L • Used for high temperature, low temperature and thermal cycling tests
	Temperature Humidity Chamber	• Temperature range options: -20℃~+150℃ / -40℃~+150℃ / -70℃~+150℃ • Humidity range: 20%–98% RH • Temperature fluctuation: ±0.5℃ • Humidity fluctuation: ±2.5% RH • Stable long-term operation • Used for climate reliability testing
	Thermal Cycling Chamber	• Temperature range: -70℃ to +150℃<br> • Temperature change rate: up to 15℃/min (customizable) • Fast temperature transitions • Simulates repeated thermal stress • Helps identify material fatigue and component failures • Suitable for reliability and accelerated testing
	2-Zone / 3-Zone Thermal Shock Chamber	• Two-zone or three-zone structure for rapid temperature transfer • Hot zone temperature: ambient to +220℃ (configuration dependent) • Cold zone temperature: ambient to -70℃ (configuration dependent) • Hot and cold zone design for rapid temperature transfer • Extreme thermal stress evaluation • Ideal for automotive and electronic components
	THV Temperature Vibration Test System	•Temperature range from -50°C to +150°C •Humidity control from 30% to 98% RH •Vibration frequency from 2 Hz to 4000 Hz • Simultaneous temperature and vibration simulation • Reproduces transportation and operating environments
	Walk-In Environmental Chamber	• Large internal space for oversized samples • Custom chamber dimensions available • Suitable for battery packs, vehicles and large assemblies • Supports customized testing solutions
	Industrial Drying Oven	• Temperature range options: A: Ambient ～+250℃ B: Ambient ～+400℃ C: Ambient ～+900℃ Uniform heat circulation for consistent drying • Available in benchtop and cabinet sizes • Suitable for coatings, adhesives, and moisture-sensitive components
	Vacuum Drying Oven	• Temperature range: +35℃ ～+350℃ • Heating rate: 6℃/min • Vacuum degree: -133 Pa • Uniform heat circulation under vacuum • Suitable for coatings, adhesives, and moisture/oxidation-sensitive components
	Altitude / Low Pressure Test Chamber	• Simulated altitude: up to 30,000+ meters (configuration dependent) • Pressure range:Atmospheric pressure to 0.5kPa • Combined temperature and altitude testing available • Suitable for aerospace, avionics, and sealed enclosure testing
​	Battery Safety & Abuse Test Chamber	• Reinforced, explosion-proof steel construction • Integrated crush, nail penetration, and short-circuit test fixtures • Exhaust and fire/gas suppression systems<br>• Remote monitoring and data logging • Complies with UN 38.3, IEC 62133, UL 2580, GB 38031
​	Environmental Stress Screening (ESS) Chamber	• Temperature change rate: up to 20℃/min or higher (configuration dependent) • Optional integrated vibration table for combined ESS • Wide temperature range for repeated rapid cycling • Programmable multi-cycle screening profiles • Designed for high-throughput production screening
	PV Module Damp Heat Test Chamber	• Large chamber for full-size PV panels • Continuous, uninterrupted 1000-hour test capability • Custom fixtures for panel mounting and positioning • Complies with IEC 61215 (MQT 13)

Frequently Asked Questions

What equipment is used for temperature and humidity testing? 

Temperature and humidity testing is usually performed using an environmental test chamber, also called a temperature humidity chamber or climatic chamber. LIB provides TH Series, TR Series, TS Series, THV Series, and customized walk-in chambers for different testing requirements.

What is the difference between temperature cycling and thermal shock testing? 

Temperature cycling gradually changes temperature between high and low conditions over repeated cycles. Thermal shock testing creates rapid temperature transitions between hot and cold zones, producing more severe thermal stress. Thermal cycling is suitable for reliability evaluation, while thermal shock is used for extreme temperature transition testing.

Can one environmental chamber perform both temperature and humidity tests? 

Yes. LIB temperature humidity chambers can perform combined temperature and humidity testing. However, applications requiring extremely fast temperature changes, thermal shock, altitude simulation, or battery abuse testing usually require dedicated equipment.

Why is battery safety and abuse testing performed separately from standard temperature and humidity testing? 

Battery safety and abuse testing involves conditions that can trigger fire, venting, or explosion, such as overcharge, short circuit, or crush. This requires purpose-built, explosion-proof chambers with fire suppression and exhaust systems, which differ significantly from standard climatic test chambers.

What industries need temperature and humidity testing? 

Temperature and humidity testing is widely used in:

· Automotive

· Battery

· Electronics

· Aerospace

· Semiconductor

· Medical devices

· Research laboratories

What warranty and service does LIB provide? 

LIB provides:

· 3-year warranty

· Lifetime maintenance support

· Technical assistance

· Engineering consultation

Need a Temperature and Humidity Testing Solution?

Whether you need high temperature testing, humidity testing, thermal shock testing, temperature cycling, altitude testing, battery safety testing, or a customized environmental simulation chamber, LIB can provide the right solution.

Our engineers can recommend the most suitable test equipment based on your product requirements, industry standards, and testing objectives.

Contact LIB today to discuss your environmental testing requirements.