Guarded Heat Flow Measurement System
Whats/App: +86 156 1874 6768
Web: standard-groups.com
Standards
ASTM E1530: Standard Test Method for Evaluating Thermal Resistance of Materials Using a Guarded Heat Flow Meter.
ASTM E1560-19: Standard Test Method for Thermal Conductivity Measurements with Guarded Heat Flow Meter.
Parameters
| Item | Specification / Description |
|---|---|
| Applicable Materials | Metals, Polymers, Composites, Pastes |
| Sensor Type | Thermocouples (x6) |
| Measurement Direction | Through-thickness |
| Thermal Conductivity Range | 0.1 – 100 W/m·K * |
| Sample Diameter | 50 – 50.8 mm |
| Sample Thickness | Up to 25 mm (0.1 mm optional for soft materials) |
| Test Time | 40 – 60 minutes |
| Accuracy | 3% (k) |
| Repeatability | 1 – 2% (k) |
| Temperature Range | -20 to 310 °C ** |
| Pressure | Automatic, up to 379 kPa (55 psi) |
| Notes | * Materials with conductivity >60 W/m·K must have thickness ≥12.5 mm ** Each system includes a refrigeration circulator |
Replaceable Heat Flow Module: Tool-free replacement of the calibrated heat flux sensor module.
Comprehensive Temperature Monitoring: Multiple thermocouples ensure sample temperature gradient is at steady-state during testing.
Precision Thickness Measurement: Proprietary universal design allows automated thickness measurement for rigid materials or user-defined thickness/pressure for compressible samples. Optical encoders provide ±0.025 mm accuracy.
Temperature Control: Heat exchanger with thermocouples enables precise heating and cooling; lateral heat loss minimized using guarded furnace; software allows precise temperature programming.
Clamping Control: Automatic clamping for rigid samples; software-controlled height/pressure (up to 379 kPa / 55 psi) for soft materials, with automatic stop once desired parameters are reached.
Steady-State Measurement: Ensures accurate thermal resistance and conductivity by maintaining stable temperature gradients through the sample.
Accessories
Contact paste for top and bottom surfaces.
Optional software module for custom temperature programming.
Standard calibration samples with known thermal resistance and conductivity.
Refrigeration circulator for low-temperature testing.
Test Procedures
Sample Preparation: Ensure sample diameter is 50–50.8 mm and top/bottom surfaces are flat and parallel. Apply a thin layer of contact paste (~1 min).
Load Sample: Place the sample into the test stack. For rigid materials, the upper stack applies default system pressure. For soft materials, define the desired pressure or thickness. Parameters can be controlled within the test plan (~1 min).
Measurement: Set single or unlimited temperature steps (up to 300°C). Internal red backlight indicates test in progress (~40–60 min).
Export Results: Temperatures of upper and lower test plates are monitored to ensure stability. Thermal resistance and calculated conductivity are displayed in tabular form and can be exported to Excel. Internal blue backlight indicates test completion and safe handling (~1 min).
Maintenance Information
Regularly clean thermocouple and heat flux sensor surfaces to avoid debris interference.
Periodically check calibration using reference samples with known thermal properties.
Inspect mechanical components of motorized stack and encoders to maintain accuracy.
Store in a dry, temperature-stable environment when not in use.
Send product request
Other supplier products
 |
Photovoltaic module damp heat test chamber | Whats/App: +86 156 1874 6768 Web: standard-groups.com Standard IEC 61215: Terrestrial Photovoltaic (PV) Modules – Design Qualification and... |
 |
Laboratory Xenon Light Fastness & Degradation Tester | Whats/App: +86 156 1874 6768 Web: standard-groups.com Product Overview The Water-Cooled Xenon Lamp Weathering Test Chamber is a premium environm... |
 |
Cleanliness automatic extractor | Whats/App: +86 156 1874 6768 Web: standard-groups.com Component Cleanliness Cabinet equipped with cleaning modes such as pressure jet cleaning, p... |
 |
Catheter bending resistance test device | Whats/App: +86 156 1874 6768 Web: standard-groups.com Product introduction The tester is composed of a programmable controller, a touch screen, ... |
 |
Femoral Stem Fatigue Performance Testing Machine | Whats/App: +86 156 1874 6768 Web: standard-groups.com Standard YY/T 0809.4 (China): Specifies fatigue testing protocols for femoral stems in par... |
Same products
 |
Laser Chuck | Seller: Drake precision technology (changzhou) Co.,Ltd. | Laser Chuck Introduce foreign advanced technology and management concept, High precision pro... |
 |
Power Pallet Jack For Sale | Seller: Jinan Hulk Machinery Co., Ltd | Power Pallet Jack For Sale Electric Pallet Truck For Sale As a supplier of power pallet jac... |
 |
Multi Directional Forklift For Sale | Seller: Jinan Hulk Machinery Co., Ltd | Multi Directional Forklift For Sale Multi Directional Forklift For Sale As a supplier of mu... |
 |
Narrow Aisle Forklift For Sale | Seller: Jinan Hulk Machinery Co., Ltd | Narrow Aisle Forklift For Sale Narrow Aisle Forklift For Sale As a supplier of , we provide... |
 |
Electric Order Picker Supplier | Seller: Jinan Hulk Machinery Co., Ltd | Electric Order Picker Supplier Electric Order Picker Supplier As an supplier, we offer a co... |
