GB/T 35762-2017 English PDF

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GB/T 35762-2017: Textiles -- Test method for thermal transmittance -- Flat plate test
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 35762-2017	199	Add to Cart	3 days	Textiles -- Test method for thermal transmittance -- Flat plate test	Valid

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Basic data

Standard ID: GB/T 35762-2017 (GB/T35762-2017)
Description (Translated English): Textiles -- Test method for thermal transmittance -- Flat plate test
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: W04
Classification of International Standard: 59.080.30
Word Count Estimation: 10,122
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Regulation (derived from): National Standards Bulletin 2017 No. 32
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 35762-2017: Textiles -- Test method for thermal transmittance -- Flat plate test

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Textiles - Test method for thermal transmittance - Flat plate test ICS 59.080.30 W04 National Standards of People's Republic of China Textiles - Heat transfer performance test methods - Plate method 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard proposed by the China Textile Industry Federation. This standard by the National Textile Standardization Technical Committee (SAC/TC209) centralized. The main drafting units of this standard. Textile Testing and Certification Co., Ltd., Hangzhou Holley Industrial Group Co., Ltd., Xiamen Anta Sports Supplies Co., Ltd., Ningbo Textile Instrument Factory. The main drafters of this standard. Ren Hening, Wang Baojun, Guo Wensong, Ma Shuang, Shen Zhang first, Liu Tao, Fan Bin, Li Su, Hu Junwei, Feng Pei-jun. Textiles - Heat transfer performance test methods - Plate method

1 Scope

This standard specifies the textile heat transfer performance test methods. This standard applies to all types of textile fabrics and their products, coated fabrics, leather and multi-layer composite materials can be implemented by reference.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6529 Textiles conditioning and testing standard atmosphere

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Thermal resistance thermalresistance Rct The ratio of the temperature difference between the two sides of the specimen and the heat flux per unit area passing vertically through the specimen. Note 1. This dry heat flux may be one or more of conduction, convection and radiation. Note 2. The thermal resistance, Rct, is measured in Kelvin per Watt (m2 · K/W). 3.2 Heat transfer coefficient heattransmissioncoefficient When there is a unit temperature difference on both sides of the specimen, the heat flux per unit area passing through the specimen is expressed in units of W/(m2 · K). 3.3 Clovel clovalue clo A unit of thermal resistance. In the temperature of 21 ℃, the relative humidity does not exceed 50%, the air flow does not exceed 0.1m/s environmental conditions, When the sitter (whose basal metabolism is 58 W/m2) feels comfortable, the thermal insulation value of the person wearing the garment is 1 clo.

4 principle

The sample is covered on the test board, the test board and the floor and the surrounding protective plate are electrically controlled, and can maintain a constant temperature, so that the test board The heat can only be emitted in the direction of the sample, and the heating power required for the test plate to maintain a constant temperature for a certain period of time is measured to calculate the heat of the sample Resistance, heat transfer coefficient, Clohms. ......

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