Contact Heat Transmission Tester
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The Protective Clothing Thermal Conductivity Tester is a specialized device used to evaluate the thermal conductivity performance of thermal insulation clothing when it comes into contact with a heat source. By simulating a high-temperature contact environment, it quantifies the material's resistance to heat conduction, providing a scientific basis for the design, production, and use of thermal insulation clothing.
Applications
In the medical field, it helps develop and screen more comfortable medical protective clothing to prevent heat accumulation and discomfort caused by long-term wearing for medical staff, and reduce the risk of heat stroke; in the industrial and fire protection fields, it can evaluate the thermal insulation effect of high-temperature protective clothing to ensure the safety of workers in high-temperature environments and prevent heat injuries.
Standards
ISO 11092:2014：Textiles — Physiological effects — Measurement of thermal and water-vapour resistance under steady-state conditions (sweating guarded-hotplate test)
ASTM D1518-17：Standard Test Method for Thermal Resistance of Batting Systems Using a Hot Plate
ASTM F1868：Standard Test Method for Thermal Resistance, Evaporative Resistance, and Total Heat Loss Measurements of Clothing Materials Using a Sweating Hot Plate
ISO 5085-1：Textiles — Determination of thermal resistance — Part 1: Low thermal resistance
ISO 9920:2007：Ergonomics of the thermal environment — Estimation of thermal insulation and water vapour resistance of a clothing ensemble
Features
Quantitative Performance Data: Provides objective, numerical data on the thermal insulation properties of protective clothing materials.
Ensures Wearer Safety and Comfort: Supports the development and selection of materials that provide appropriate thermal protection against heat or cold.
Standard Compliance: Enables testing in accordance with relevant international and national standards, essential for product certification and market acceptance.
Versatile Material Testing: Applicable to a wide range of textile structures, from single fabrics to multi-layer protective ensembles.
Supports Research and Development: Facilitates the study of thermal behavior in textiles and the development of innovative protective materials.
Quality Control Tool: Allows manufacturers to verify the consistency of the thermal properties of their materials during production.
Technical Parameters
| Parameter | Specification |
|---|---|
| Sample | Textile |
| Testing standards | DIN EN 702. ISO 1217-1 |
| Sensor | Calorimeter |
| Power supply | 230 VAC / 350 VA |
| Gas source | Oxygen / Acetylene gas |
| Equipment dimensions (W x D x H) | 600 x 250 x 650 mm |
Test Procedures
Before the experiment, the heating cylinder was heated to the set temperature, and the sample was mounted onto the calorimeter. The calorimeter was moved towards the heating cylinder at a speed of 5 mm/s, and a load of 45 N was applied upon contact. The temperature rise time threshold of 10°C was measured using the calorimeter. The temperature of the heating cylinder could be adjusted from room temperature to 500°C.
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