28.05.2025 by Aileen Sammler
Contract Testing of Thermophysical Properties – Enhanced with the NETZSCH TCT 716 Lambda Guarded Heat Flow Meter
At NETZSCH Analyzing & Testing, we continuously invest in improving our services to meet the evolving needs of material developers, quality engineers, and research professionals. We are proud to announce a significant expansion in our contract testing offering for thermophysical properties (TPP).
New to our portfolio is the TCT 716 Lambda, a guarded heat flow meter (GHFM) for precise, standardized Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity testing in the medium conductivity range in accordance with ASTM E1530 – now available as contract testing service.
The Importance of Thermophysical Properties
Thermophysical properties are fundamental characteristics of materials that describe their behavior in response to thermal and/or physical changes. In addition to DensityThe mass density is defined as the ratio between mass and volume. density and Specific Heat Capacity (cp)Heat capacity is a material-specific physical quantity, determined by the amount of heat supplied to specimen, divided by the resulting temperature increase. The specific heat capacity is related to a unit mass of the specimen.specific heat capacity, Thermal DiffusivityThermal diffusivity (a with the unit mm2/s) is a material-specific property for characterizing unsteady heat conduction. This value describes how quickly a material reacts to a change in temperature.thermal diffusivity and Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity are the most important thermophysical properties. These properties play a crucial role in understanding how materials interact with environmental factors such as heat, radiation, and pressure. Accurate measurement of these properties is essential.
Whether you're benchmarking insulation materials, evaluating composites, or developing thermal interface materials, our professional laboratory offers access to cutting-edge instruments and expert support — without the need for in-house equipment.
NEW: Contract Testing with the TCT 716 Lambda Guarded Heat Flow Meter (GHFM)
The NETZSCH TCT 716 Lambda enables direct Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity measurements in accordance with ASTM E1530, allowing for the study of a wide range of solid, rigid or incompressible materials. This makes it especially valuable for materials that fall into the medium conductivity range.
Key Features of the NETZSCH GHFM
- Thermal resistance range: approx. 0.001 ... 0.030 m2·K/W
- Thermal conductivity range: approx. 0.1 ... 30 W/(m·K)
- Temperature range: -10°C to 300°C
- Standard compliance: ASTM E1530
- Sample size: ø 50.8 mm (2 in); height up to 31.8 mm (1¼ in)
- Materials: Polymers, composites, glasses, ceramics, laminates, building materials
- Double stack design: Improved efficiency by testing two specimens independently at the same time
Whether you want to investigate natural stone, plastics, or other materials, the TCT 716 Lambda makes sure that even inhomogeneous samples yield highly accurate, representative measurements.
LFA (Laser/Light Flash Analysis) – High-Temperature Thermal DiffusivityThermal diffusivity (a with the unit mm2/s) is a material-specific property for characterizing unsteady heat conduction. This value describes how quickly a material reacts to a change in temperature.Thermal Diffusivity and Conductivity
Of course, our lab continues to offer Thermal DiffusivityThermal diffusivity (a with the unit mm2/s) is a material-specific property for characterizing unsteady heat conduction. This value describes how quickly a material reacts to a change in temperature.thermal diffusivity, conductivity, and Specific Heat Capacity (cp)Heat capacity is a material-specific physical quantity, determined by the amount of heat supplied to specimen, divided by the resulting temperature increase. The specific heat capacity is related to a unit mass of the specimen.specific heat capacity testing using the different NETZSCH LFA models to cover a broad range of temperatures and applications.
LFA Highlights:
- Temperature range: -100°C to 2000°C
- Standard size: Ø 12.7 mm; different samples sizes available
- Material range: Metals, ceramics, polymers, carbon materials, powders, liquids etc.
- Standard compliance, amongst others to ASTM E1461
- Measurement range: 0.1 ... 2000 W/(m·K)
- Measurement results: Thermal DiffusivityThermal diffusivity (a with the unit mm2/s) is a material-specific property for characterizing unsteady heat conduction. This value describes how quickly a material reacts to a change in temperature.Thermal diffusivity, Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity (via cp and DensityThe mass density is defined as the ratio between mass and volume. density), Specific Heat Capacity (cp)Heat capacity is a material-specific physical quantity, determined by the amount of heat supplied to specimen, divided by the resulting temperature increase. The specific heat capacity is related to a unit mass of the specimen.specific heat capacity
Also Available: NETZSCH GHP and HFM Contract Testing Services
To enhance our capabilities for the analysis of thermophysical properties, we also offer contract testing using:
- Ideal for highly insulating materials like polymer foams, aerogels, stone- and glass wool and VIPs
- standard compliance, amongst others with ISO 8302 and ASTM C177
- Temperature range: -160°C to 600°C
- Measurement range: approx. Up to 0.5 W/(m·K)
- Perfect for building materials, thermal insulating materials like polymer foams, aerogels, stone- and glass wool and VIPs
- Temperature range: -10° up to 90°C
- Standard size: different models available up to 600 mm x 600 mm x 200 mm
- Standard compliance amongst others with ISO 8301, ASTM C518
One Laboratory, Many Experts and All Key Methods for Testing Thermophysical Properties
With the combination of LFA, TCT, GHP, and HFM, NETZSCH offers a complete range of contract testing services for thermophysical properties. We now cover the entire spectrum:
- LFA: For medium to high conductivity and high temperatures and technical materials
- TCT: For medium conductivity materials (NEW!)
- GHP: For ultra-low conductive materials
- HFM: For building materials and insulating materials
Consult the NETZSCH experts in our applications labs to choose the best-suited measuring method for your specific needs. You will be working with our experienced scientists (physicists, chemists, materials scientists), possessing consolidated knowledge of the most varied methods and materials spectra. The confidentiality of your information and data is, of course, guaranteed.
NETZSCH provides reliable, standards-based testing with expert evaluation and support. Contact us today and let us help you find the right method for your material.
👉 Learn more and request your quote here
NEW: Contract Testing Service with TCT 716 Lambda
The TCT 716 Lambda offers the capability of analyzing specimens with optimum dimensions: smaller than conventional HFM and larger than LFA. This allows testing of homogeneous and inhomogeneous materials with low to medium thermal conductivity, such as polymers, composites, glass, ceramics, some metals, etc.
Discuss with our experts the best possible method for your sample. Test now and take advantage of our special contract testing offer!
