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GB/T 6504-2017: Man-Made Fiber - Test Method for Oil Content Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 6504: Historical versions
GB/T 6504-2017: Man-Made Fiber - Test Method for Oil Content---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/GBT6504-2017GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 59.060.20 W 50 Replacing GB/T 6504-2008 Man-Made Fiber – Test Method for Oil Content 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... 5 2 Normative References... 5 3 Terms and Definitions... 6 4 Sampling Rules... 6 5 Test Methods... 6 6 Test Report... 12 Appendix A (Normative) Optical Refractive Index Method... 13 Appendix B (Normative) Nuclear and Magnetic Resonance Method... 17 Appendix C (Normative) Rapid Extrusion Method... 191 ScopeThis Standard specifies the test method for oil content of man-made fiber. extraction method (Method A), neutral soap solution washing method (Method B), optical refractive index method (Appendix A), nuclear magnetic resonance method (Appendix B), rapid extrusion method (Appendix C). This Standard is applicable to polyester (dacron), polyamide (chinlon), polyacrylonitrile (acrylic), polypropylene (polypropylene), polyvinyl formal (vinylon), regenerated cellulose fiber (rayon); other type of man-made fibers can refer to.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) are applicable to this document. GB/T 3291.1 Textiles – Terms of Textile Material Properties and Test – Part 1.Fiber and Yarn GB/T 3291.3 Textiles – Terms of Textile Material Properties and Test – Part 3. General GB/T 3921 Textiles – Tests for Color Fastness – Color Fastness to Washing with Soap or Soap and Soda GB/T 4146 (all parts) Textiles – Man-Made Fibers GB/T 6502 Sampling Method of Man-Made Filament Yarns3 Terms and DefinitionsThe terms and definitions stipulated in GB/T 3291.1, GB/T 3291.3, GB/T 4146 (all parts) are applicable to this document.4 Sampling RulesThe extraction of samples shall be as per the following requirements; don’t extract packages that have been exposed to moisture, contamination, abrasion or have been opened.5 Test Methods5.1 Method A – Extraction Method (arbitration test method) 5.1.1 General When the extractant or extraction method is not suitable for a certain fiber or certain type of oiling agent, the test procedure shall be modified. Any modification shall be stated in the test report. 5.1.2 Principle Since the oiling agent can be dissolved in a specific organic solvent, use the fat extractor to extract oiling agent from the specimen of organic solvent; vaporize the solvent; weigh the mass of residual oiling agent and mass of fiber after treatment, then calculate the oil content of the specimen. 5.1.3 Reagents and materials 5.1.4 Apparatus The apparatus used in this method is as follows. 5.1.5 Specimen preparation Take 2 specimens, take about 5g of staple fiber for each specimen, accurate to 0.01g; the filaments are wound together to ensure that each package is taken and evenly cut. take about 7g of pre-oriented yarns and draw yarns, accurate to 0.01g; take about 4g of textured yarn, accurate to 0.01g. 5.1.6 Test procedures 5.6.1.4 Use tweezers to take out the specimen from the withdrawal cylinder of the fat extractor; use tweezers to remove the solvent off the specimen; take off the distillation flask; recycle the solvent. 5.6.1.5 Re-set the temperature of constant temperature water bath to be 90°C; place 5.1.7 Result calculation The oil content of the specimen shall be calculated as per Formula (1). 5.2 Method B – neutral soap solution washing method 5.2.1 Scope This Method is applicable to the determination of oil content for filament of man-made fiber. It is not applicable to the chinlon 6 filament, and spandex filament. 5.2.2 Principle Use the affinity nature between the soap solution and oiling agent, under the role of washing power, the oiling agent on the specimen shall be transferred to the soap solution. Calculate the oil content according to the mass change before and after the specimen washing. 5.2.5 Specimen preparation The same as 5.1.5. 5.2.6 Test procedures 5.2.6.1 Determination of specimen mass before treatment Place the specimen into the specimen bag; weigh the mass of specimen bag (containing the specimen); subtract the known washing and drying mass of the specimen bag; the obtain the mass m1 of each specimen before washing, accurate to 0.1mg. 5.2.6.2 Washing 5.3 Optical refractive index method Appendix A specifies the optical refractive index method. 5.4 Nuclear magnetic resonance method Appendix B specifies the nuclear magnetic resonance method. 5.5 Rapid extrusion method Appendix C specifies the rapid extrusion method.6 Test ReportThe test report shall include. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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