Transient Plane Source (TPS)
Materials Solids, Liquids, Paste and Powder
Thermal Properties Thermal Conductivity, Thermal Diffusivity, Specific Heat Capacity, & Thermal Effusivity
Temperature Range -160°C to 1000 °C
Accuracy, Repeatability 5%, 2%
Standard ISO/DIS 22007-2.2

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Modified Transient Plane Source (MTPS)
Materials Solids & Small Particle Powder
Thermal Properties Thermal Effusivity
Temperature Range Room Temperature
Accuracy, Repeatability 5%, 2%
Standard ASTM 7984 – Fabrics

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Frequently Asked Questions

Q: What is thermal effusivity testing?
Thermal effusivity testing is a measure of its ability to exchange thermal energy with its surroundings. Although the quantity of thermal effusivity can be expressed in bulk property terms of e = √k∙ρ∙Cρ when measured, it is not measured in terms of bulk properties.
Q: How to test for thermal effusivity?
Thermtest offers various thermal effusivity testing services. Our thermal effusivity measurement methods cover a wide range of temperature and sample types. If you have any questions about testing, please contact us and we will answer as quick as possible.
Q: How much do thermal conductivity testing cost?
If you only need a limited number of thermal effusivity tests, then our contract thermal effusivity testing services can is what you need. Request a quote today or contact us if you have any questions. We have a full-service thermal testing laboratory to accommodate your thermal effusivity testing needs using the best thermal effusivity testing methods available.


One of our qualified team members will reach out to you to offer a price that fits your needs.