GB/T 35762-2017 in English
VALIDTextiles—Test method for thermal transmittance—Flat plate test
- Issued on:2017-12-29
- Implemented on:2018-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 35762-2017纺织品 热传递性能试验方法 平板法》由TC209（全国纺织品标准化技术委员会）归口，TC209SC1（全国纺织品标准化技术委员会基础标准分会）执行，主管部门为中国纺织工业联合会。
Introduction
1. Background of standard formulation and technological evolution
GB/T XXXXX-2017 "Test method for thermal transfer performance of textiles - Flat plate method" is an important standard formulated based on the research on human thermal comfort, aiming to quantify the thermal insulation performance and thermal conductivity characteristics of textile materials.
2. Comparison of standard frameworks
| Dimensions | GB/T XXXXX-2017 | Differences in international standards | Applicable scenarios |
|---|---|---|---|
| Test principle | Heat flow measurement based on the plate method | Consistent with ISO 11097 | Accurate measurement in a laboratory environment |
| Instrument requirements | Hot plate assembly, temperature controller, thermal power meter | Comply with international general equipment standards | Stability test under high temperature and high humidity environment |
| Calculation formula | Multi-dimensional calculation of thermal resistance, heat transfer coefficient and Crowe value | Aligned with ANSI/ASTM D3105-2019 | Clothing thermal insulation performance evaluation |
3. Standard interpretation and practical application
Term analysis:
- Thermal resistance: The ratio of the temperature difference on both sides of the material to the heat flow per unit area, reflecting the thermal insulation performance of the material.
- Heat transfer coefficient: When there is a 1K temperature difference on both sides of the material, the heat per unit area is quantified to quantify the thermal conductivity of the material.
- Clo value: The unit of thermal insulation performance of clothing perceived by the human body in a sitting state at 21°C.
Test principle:
By covering the sample on the hot plate assembly, using electric heating control to maintain a constant temperature, measuring the change in heat flow power to calculate thermal resistance, heat transfer coefficient and clo value. This method is suitable for thermal performance evaluation of various textiles and their products.
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