GB/T 35263-2017 PDF EnglishUS$110.00 · In stock · Download in 9 seconds
GB/T 35263-2017: Textiles -- Testing and evaluation for cool feeling in contact instant Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 35263-2017: Textiles -- Testing and evaluation for cool feeling in contact instant---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT35263-2017GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 59.080.30 W 04 Textiles - Testing and evaluation for cool feeling in contact instant Issued on. DECEMBER 29, 2017 Implemented on. JULY 01, 2018 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of ContentsForeword... 3 1 Scope... 4 2 Normative references... 4 3 Terms and definitions... 4 4 Principle... 5 5 Test equipment... 5 6 Standard atmosphere for humidity conditioning and test... 6 7 Preparation of specimen... 7 8 Test procedure... 7 9 Result calculation... 7 10 Assessment... 7 11 Test report... 8ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China National Textile and Apparel Council. This standard shall be under the jurisdiction of the National Textile Standardization Technical Committee (SAC/TC 209). Drafting organizations of this standard. China Textile Standard (Beijing) Inspection and Certification Center Co., Ltd., Suzhou Jinhui Fiber New Material Co., Ltd., Lutai Textile Co., Ltd., Lianrunxiang (Qingdao) Textile Technology Co., Ltd., Anta (China) Co., Ltd., TOREAD Holding Group Co., Ltd., Shanghai Aili Textile Technology Inspection Co., Ltd., Hosa Industry (Fujian) Co., Ltd., Wenzhou Darong Textile Instrument Co., Ltd., Quanzhou Haitian Material Technology Co., Ltd., Shanghai Haoxing Technology Co., Ltd., Shandong Jining Ruyi Wool Textile Co., Ltd. The main drafters of this standard. Zhang Hui, Wu Jianchun, Wang Baojun, Ren Hening, Tan Hui, Geng Caihua, Jiang Lu, Wu Dawei, Li Su, Chen Baishun, Liang Guobin, Liu Jun, Kong Linghao, Zhang Mengsheng, Chen Liqun, Li Zhongcheng, Du Yuanshu. Textiles - Testing and evaluation for cool feeling in contact instant1 ScopeThis standard specifies the testing and evaluation methods for the instant cooling performance of textiles in contact with the skin. This standard applies to all kinds of fabrics and their products.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard. GB/T 6529 Textiles - Standard atmospheres for conditioning and testing GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Contact transient cool feeling When the skin is in contact with fabrics below its temperature for an instant, causing rapid loss of heat on the surface of the skin and an instantaneous drop in temperature, forming a cool feeling by reflecting the temperature- sensitive nerve endings in the skin to the brain.4 PrincipleUnder the specified test environmental conditions, contact the thermal detection plate with a temperature higher than the specimen with the specimen; measure the temperature change of the thermal detection plate with time; calculate its contact cooling coefficient (qmax), which can characterize the performance of contact transient cool feeling of the sample. The larger the qmax value, the stronger the skin feels the cooling; the smaller the value, the weaker the skin feels the cooling.5 Test equipmentCool feeling performance tester (see Figure 1), including thermal detection plate, sample loading platform, automatic calculation and recording device. The specific requirements are as follows.6 Standard atmosphere for humidity conditioning and test Perform the humidity conditioning and test for the specimen in the standardatmosphere as specified by GB/T 6529. Sample loading platform Copper plate Temperature sensor Insulating material Specimen7 Preparation of specimenCut 5 representative specimens. The size of each specimen is about 200 mm × 200 mm. Sampling shall avoid defects and wrinkles that affect the test results.8 Test procedure8.1 Set the temperature of the sample loading platform to (20 ± 0.5) °C. Spread the specimen flat on the sample loading platform, with the fabric surface in contact with the skin facing up. 8.3 After the temperature of the thermal detection plate reaches the temperature set in 8.2 and remains stable, cut off the heat source of the thermal detection plate and quickly place it vertically on the specimen, so that the surface of the copper plate is in contact with the fabric. 8.4 Determine all other specimens according to the steps 8.1 ~ 8.3.9 Result calculationCalculate the average value of qmax of 5 specimens. The result shall be rounded to two decimal places according to GB/T 8170.10 AssessmentIf necessary, evaluate the instant cool feeling of the sample. When ΔT = 15 °C, the evaluation index is as shown in Table 1.11 Test reportThe test report shall include the following. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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