Transient Plane Source (TPS)
Materials Solids, Liquids, Paste, and Powder
Thermal Conductivity Range 0.005 to 1800 W/mK
Directional Measurement Bulk, Through-thickness, and In-plane
Temperature Range -160°C to 1000 °C
Accuracy, Repeatability 5%, 2%
Standard ISO/DIS 22007-2.2

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Thermtest Heat Flow Meter (HFM)
Materials Solids and Loose Materials
Thermal Conductivity Range 0.001 to 0.5 W/mK
Directional Measurement Bulk
Temperature Range -20°C to 75 °C
Accuracy, Repeatability 3%, 1%
Standard ASTM C518

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Thermtest Transient Hot Wire Liquids (THW)
Materials Liquids and Pastes
Thermal Conductivity Range 0.01 to 2 W/mK
Directional Measurement Bulk
Temperature Range -50°C to 400°C
Accuracy, Repeatability 5%, 2%
Standard ASTM D7896-14

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Thermtest Transient Line Source (TLS)
Materials Soil and Soft Materials
Thermal Conductivity Range 0.1 to 5 W/mK
Directional Measurement Bulk
Temperature Range -50°C to 100 °C
Accuracy, Repeatability 5%, 2%
Standard ASTM D5334

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Transient Hot Wire Solids (THW)
Materials Solids
Thermal Conductivity Range 0.01 to 0.2 W/mK
Directional Measurement Bulk
Temperature Range Room temperature
Accuracy, Repeatability 5%, 2%
Standard NA

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Laser Flash Apparatus (LFA)
Materials Solids
Thermal Conductivity Range 0.1 to 2000 W/mK
Directional Measurement Through-thickness
Temperature Range -160°C to 1600 °C
Accuracy, Repeatability 5%, 2%
Standard ASTM E1461

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Guarded Heat Flow Meter (GHFM)
Materials Solids & Pastes
Thermal Conductivity Range 0.1 to 40 W/mK
Directional Measurement Through-thickness
Temperature Range -20°C to 300 °C
Accuracy, Repeatability 5%, 2%
Standard ASTM E1530

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Guarded Heat Flow Meter - Gasket Material (GHFM)
Materials Solids
Thermal Conductivity Range 0.1 to 1 W/mK
Directional Measurement Through-thickness
Temperature Range -10°C to 80 °C
Accuracy, Repeatability 3%, 1%
Standard ASTM F433

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Guarded Comparative Longitudinal Heat Flow (GCLHF)
Materials Solids
Thermal Conductivity Range 0.2 to 200 W/mK
Directional Measurement Bulk
Temperature Range up to 1000°C
Accuracy, Repeatability 5%, 2%
Standard ASTM E1225-13

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Physical Properties Measurement System (PPMS)
Materials Solids
Thermal Conductivity Range 0.1 to 20 W/mK
Directional Measurement Through-thickness and In-plane
Temperature Range -270°C to 100 °C
Accuracy, Repeatability 5%, 2%
Standard NA

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Frequently Asked Questions

Q: What is thermal resistivity testing?
Thermal resistivity testing is the process of testing the ability of a material to resist heat. It is the reciprocal of thermal conductance.
Q: How to test for thermal resistivity?
There are a number of possible options to measure thermal resistivity, each of them is suitable for a limited range of materials, depending on the thermal properties and temperature.

Thermtest offers various thermal resistivity testing services. Our thermal resistivity 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 resistivity testing cost?
If you only need a limited number of thermal resistivity tests, then our contract thermal resistivity testing services are 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 resistivity testing needs using the best thermal resistivity measuring methods available.

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