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SN/T 4831-2017 English PDFUS$139.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 4831-2017: Textile for import and export. Method for identification. Natural color mulberry silk Status: Valid
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SN/T 4831-2017: Textile for import and export. Method for identification. Natural color mulberry silk---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. (Import and export textile fiber qualitative analysis natural color silk) ICS 59.060.10 W40 People's Republic of China entry and exit inspection and quarantine industry standards Qualitative analysis of textile fibers for import and export Natural color mulberry silk Released on.2017-07-21 2018-03-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued Entry-Exit Inspection and Quarantine Industry Standard Qualitative analysis of textile fibers for import and export Natural color mulberry silk China Standard Press Publishing First edition, May.2018 ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Guangxi Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Guangxi Ramie Textile Research Institute. The main drafters of this standard. Yan Ran, Huang Yien, Gai Guoping, Ma Yihua, Liao Hongmei, Chen Yu, Zhao Yongfeng, Li Ming, Tang Yanxia. Qualitative analysis of textile fibers for import and export Natural color mulberry silk1 ScopeThis standard specifies the qualitative identification method of natural colored mulberry silk. This standard applies to the qualitative identification of single-component natural colored mulberry silk. This standard does not apply to mixed and blended products.2 Normative referencesThe following documents are indispensable for the application of this document. 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 6682 Analytical laboratory water specifications and test methods3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Natural colored silk naturalcolormulberrysilk Colored mulberry silk made according to the traditional process of raw silk. 3.2 Dyed colored silk dyedcolormulberrysilk Colored silk made by dyeing.4 PrincipleIdentify the sample as natural colored silk or dyed color by observing the coloration of the sample in water and a certain concentration of hydrochloric acid solution. Color mulberry silk.5 reagentThe reagents used below are analytically pure unless otherwise stated; water is water in accordance with GB/T 6682. 5.1 Concentrated hydrochloric acid. Density 1.19g/mL, the reagents used are analytically pure unless otherwise stated; 5.2 hydrochloric acid solution (5 2, volume ratio). concentrated hydrochloric acid (5.1) and water are mixed according to the volume ratio of 5 2, the reagents used, unless otherwise The description is purely analytical.6 instruments6.1 Balance. Sensitivity ≤ 0.1g. ...... |