Menu
This instrument is manufactured in accordance with GB/T 10295-2008 and GB/T 39704-2020. It is mainly used for measuring the thermal conductivity of STP and VIP vacuum insulation panels. It is widely applicable to production enterprises of thermal insulation materials, quality inspection departments, universities, and research institutes.
1.Product Name
Thermal Conductivity Tester (Heat Flow Meter Method)
2.Applicable Standards
GB/T 10295-2008 – Thermal insulation – Determination of steady-state thermal resistance and related properties – Heat flow meter method
GB/T 39704-2020 – Determination of effective thermal conductivity of vacuum insulation panels (VIP)
EN 12667, ASTM C518, ISO 8301
3.Product Overview
This instrument is manufactured in accordance with GB/T 10295-2008 and GB/T 39704-2020. It is mainly used for measuring the thermal conductivity of STP and VIP vacuum insulation panels. It is widely applicable to production enterprises of thermal insulation materials, quality inspection departments, universities, and research institutes.
4.Application
The instrument is primarily used for testing STP and VIP vacuum insulation panels, as well as other materials such as silicate insulation materials, ceramic insulation materials, XPS extruded boards, rigid polyurethane foam boards, foamed cement boards, EPS foam boards, perlite, vermiculite bricks, and other similar thermal insulation materials.
5.Working Principle
The instrument uses a steady-state measurement method. Accurate results are obtained only after the cold plate and hot plate reach thermal equilibrium. According to the one-dimensional steady-state heat transfer equation, heat generated by the hot plate heater passes through the specimen to the cold plate and is then carried away by circulating water or other medium, forming a complete thermodynamic cycle.
6.Key Features
Integrated constant-temperature bath system
Full computer control via user-friendly software interface
Automatic data acquisition, processing, and calculation
Real-time display and printout of thermal conductivity results
Compact footprint, fast measurement, high accuracy, low noise
7.Main Specifications
| Parameter | Specification |
| Heat flux range | (-600 ~ +600) W/m² |
| Thermal conductivity display range | 0.001 ~ 2.000 W/(m·K) |
| Measurement accuracy | ±3 % |
| Repeatability | ±1 % |
| Temperature measurement range | -5 °C ~ +95 °C |
| Temperature resolution | 0.01 °C |
| Temperature control accuracy | ±0.05 °C |
| Specimen thickness (standard) | 25 mm (range: 5 ~ 80 mm) |
| Specimen size (optional) | 300×300, 300×600, 400×600, 600×600 mm (custom sizes >600 mm available) |
| Laboratory temperature | (23 ± 2) °C |
| Laboratory humidity | (40 ~ 60) % RH |
| Power supply | AC 220V ±10 %, 2.0 kW |
8. Standard Configuration
Thermal Conductivity Tester (main unit)
PC (computer)
Circulating water bath
Power cables and accessories
© Dongguan Zhongli Instrument Technology Co., Ltd.
Leave your inquiry, we will provide you with quality products and services!
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we’re ready to start working on your new project, contact us now to get started.