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GB/T 38426-2019: Test method for thermal resistance and use temperature of sleeping bags
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GB/T 38426-2019: Test method for thermal resistance and use temperature of sleeping bags

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Test method for thermal resistance and use temperature of sleeping bags ICS 61.020 Y75 National Standards of People's Republic of China Method for measuring thermal resistance and use temperature of sleeping bag 2019-12-31 release 2020-07-01 implementation State Administration of Market Supervision Published by the National Standardization Administration

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by China Textile Industry Federation. This standard is under the jurisdiction of the National Garment Standardization Technical Committee (SAC/TC219). This standard was drafted. Suzhou University, Shanghai Textile Group Testing Standards Co., Ltd., Jiangsu Shangcheng Textile Technology Co., Ltd., Huizhou Xue Institute, Shanghai Taishi Testing Technology Co., Ltd. The main drafters of this standard. Lu Yehu, Yang Xiuyue, Liu Shangbin, Chen Xuejun, Yang Guancao, Pan Jin. Method for measuring thermal resistance and use temperature of sleeping bag

1 Scope

This standard specifies the determination of the thermal resistance of adult sleeping bags used in sports and leisure activities and the calculation method of the use temperature. This standard applies to the evaluation of the thermal insulation performance of sleeping bags under steady-state conditions. This standard does not apply to sleeping bags for special purposes such as military and extreme environmental expeditions. This standard also does not apply to those aged 14 and under Infants and children sleeping bags.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 8170 Numerical rounding rules and expression and judgment of limit values GB/T 11048 Textiles-Determination of thermal and moisture resistance under steady state conditions (evaporative hot plate method) ISO 15831 Clothing Physiological Comfort Based on Thermal Resistance Measurement of a Warm-Dummy (Clothing-Physiological effects-Measurementofthermalinsulationbymeansofathermalmanikin)

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Comfortable temperature Tcomf When using a sleeping bag, the human body is in thermal equilibrium in a relaxed posture (such as lying flat) and feels the appropriate lower temperature limit. 3.2 Limit temperature Tlim When using a sleeping bag, the human body is in thermal equilibrium while maintaining a deflated posture, and the appropriate lower temperature limit is felt. 3.3 Extreme temperature Text When using a sleeping bag, the lower temperature limit of the human body due to low body temperature. 3.4 Comfortable high temperature Tmax When using a sleeping bag, part of the body is not covered by the sleeping bag, the human body sweats less and feels the appropriate upper temperature limit. 3.5 Thermal manikin It is used to measure the heat transfer through the sleeping bag under steady-state conditions, to simulate human body shape and human body heat production model. ...