Thermal Conductivity Tester: Applications and Technical Specifications

A thermal conductivity tester measures the thermal conductivity of materials such as plastics, glass, fibers, and foams. Typical users include materials testing laboratories, research institutes, factory quality departments, and university teaching and research labs. Standards compliance: The instrument references GB/T 3392-82 (Plastic thermal conductivity test method, guarded hot plate), GB/T 3139-2005 (Fiber-reinforced plastics and glass-reinforced plastics thermal conductivity methods), GB/T 10801.1 and GB/T 10801.2 (polystyrene foam for thermal insulation). It also references GB/T 10295-1988 (Determination of steady-state thermal resistance and related properties—heat flow meter method), ISO/DIS 8301 (Thermal insulation—steady-state thermal resistance and related properties—heat flow meter apparatus), ASTM C518-2004, and EN 12667. Key technical specifications: - Thermal conductivity range: 0.015 to 2 W/(m·K). - Maximum temperature (standard configuration): hot plate 80 ℃ using a heated constant-temperature water bath; cold plate can use a refrigerated constant-temperature bath to cool below ambient. - DRX-I-PC model: hot plate < 300 ℃ with heater control; cold plate can use a refrigerated constant-temperature bath to cool below ambient. Minimum temperature down to −20 ℃. - Configurations: DRX-I-PC model supports both dual-specimen and single-specimen test fixtures. - Digital temperature measurement with accuracy better than 0.2 class. - Measurement accuracy: ±3% for results. - Metered heating power: 35 W ±1%. - Specimen size options: 200 × 200 × (5–20) mm or 300 × 300 × (5–50) mm. - Test methods available: thermal resistance method and heat flow meter method, selectable according to material testing requirements.

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