Thermal Conductivity Testing

Thermal conductivity testing and measurement capabilities include testing to many international standards such as ISO 22007-2, ASTM C518, ASTM D7896, ASTM D5334, ASTM E1461, ASTM E1530, and ASTM E1225.

Transient Plane Source (TPS)

Materials

Solids, Liquids, Paste, and Powder

Thermal Conductivity Range

0.005 to 1800 W/m•K

Directional Measurement

Bulk, Through-thickness, and In-plane

Temperature Range

-160°C to 1000°C

Accuracy, Repeatability

5%, 2%

Standard

ISO 22007-2

Ready to Test?

Heat Flow Meter (HFM)

Materials

Solids and Loose Materials

Thermal Conductivity Range

0.001 to 0.5 W/m•K

Directional Measurement

Bulk

Temperature Range

-20°C to 75°C

Accuracy, Repeatability

3%, 1%

Standard

ASTM C518

Ready to Test?

Transient Hot Wire Liquids (THW)

Materials

Liquids and Pastes

Thermal Conductivity Range

0.01 to 2 W/m•K

Directional Measurement

Bulk

Temperature Range

-50°C to 400°C

Accuracy, Repeatability

5%, 2%

Standard

ASTM D7896

Ready to Test?

Transient Line Source (TLS)

Materials

Soil and Soft Materials

Thermal Conductivity Range

0.1 to 5 W/m•K

Directional Measurement

Bulk

Temperature Range

-50°C to 100°C

Accuracy, Repeatability

5%, 2%

Standard

ASTM D5334

Ready to Test?

Laser Flash Apparatus (LFA)

Materials

Solids

Thermal Conductivity Range

0.1 to 2000 W/m•K

Directional Measurement

Through-thickness

Temperature Range

-100°C to 1000°C

Accuracy, Repeatability

5%, 2%

Standard

ASTM E1461

Ready to Test?

Guarded Heat Flow Meter (GHFM)

Materials

Solids & Pastes

Thermal Conductivity Range

0.1 to 100 W/m•K

Directional Measurement

Through-thickness

Temperature Range

-20°C to 300°C

Accuracy, Repeatability

5%, 2%

Standard

ASTM E1530

Ready to Test?

Guarded Comparative Longitudinal Heat Flow (GCLHF)

Materials

Solids

Thermal Conductivity Range

0.2 to 200 W/m•K

Directional Measurement

Bulk

Temperature Range

up to 1000°C

Accuracy, Repeatability

5%, 2%

Standard

ASTM E1225

Ready to Test?

Physical Properties Measurement System (PPMS)

Materials

Solids

Thermal Conductivity Range

0.1 to 20 W/m•K

Directional Measurement

Through-thickness and In-plane

Temperature Range

-270°C to 100°C

Accuracy, Repeatability

5%, 2%

Standard

NA

Ready to Test?

Testing Partnership Announcement

Forsta Varme is excited to partner with Thermtest to offer advanced testing services for thermophysical properties. Forste Varme’s sophisticated understanding of heat for the most complex materials paired with Thermtest’s high quality thermophysical testing instruments offers expanded and proprietary testing methods at the cutting edge of metrology. We look forward to helping you with your measurement needs!

Partnered With

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Alexander Jesmer, PhD
CEO - Forsta Varme

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Get Your Free Quote Today

At Forsta Varme, our-cutting edge knowledge and in house R&D on new thermal measurement instrumentation, physical models, and simulation science provides us with the skills and know-how to help you. From standardized testing to measurements made by the people who designed the method, Forsta Varme can maximize your projects thermal property outcomes.