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SN/T 1206-2003 English PDF

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SN/T 1206-2003: Textile. Method of quantitative chemical analysis for spandex and latex
Status: Obsolete

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
SN/T 1206-2003	English	199	Add to Cart	2 days [Need to translate]	Textile. Method of quantitative chemical analysis for spandex and latex	Obsolete	SN/T 1206-2003

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Basic data

Standard ID	SN/T 1206-2003 (SN/T1206-2003)
Description (Translated English)	Textile. Method of quantitative chemical analysis for spandex and latex
Sector / Industry	Commodity Inspection Standard (Recommended)
Classification of Chinese Standard	W50
Word Count Estimation	5,543
Date of Issue	2003-03-17
Date of Implementation	2003-09-01
Quoted Standard	GB/T 8170
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary	This standard specifies the spandex filament/filament latex Textiles Quantitative chemical analysis. This standard applies to spandex filament/filament textiles latex quantitative analysis.

SN/T 1206-2003: Textile. Method of quantitative chemical analysis for spandex and latex

---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.
Textile.Method of quantitative chemical analysis for spandex and latex Book of the People's Republic of China Entry and Exit Inspection and Quarantine Quantitative chemical analysis method for textile spandex/latex Released on.2003-03-17 2003-09-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Shanghai Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Shaoxing Entry and Exit Inspection of the People's Republic of China Epidemic situation. The main drafters of this standard. Wang Weihua, Chen Qingdong, Sun Meirong, Chen Qinwei. This standard is the industry standard for inspection and quarantine issued for the first time. Quantitative chemical analysis method for textile spandex/latex

1 Scope

This standard specifies the method for quantitative chemical analysis of spandex filament/latex filament textiles. This standard applies to the quantitative analysis of spandex filament/latex filament textiles.

2 Normative references

The terms in the following documents become the provisions of this standard by reference to this standard. All dated references are followed by Modifications (not including errata content) or revisions do not apply to this standard, however, research that encourages agreements based on this standard is No, the latest version of these files can be used. For undated references, the latest edition applies to this standard. GB/T 8170 numerical rounding rules

3 Principle

The spandex filaments are dissolved in a 75% sulfuric acid solution, and the latex filaments are left to separate the spandex filaments and the latex filaments.

4 reagents

The reagents used were all chemically pure. 4.1 Distilled or deionized water. 4.2 petroleum ether, distillation range is 40 ° C ~ 60 ° C. 4.3 75% sulfuric acid. 1000mL concentrated sulfuric acid (density 1.84g/mL) slowly added to 570mL of water, until the solution is cooled to 20 ° C, sulfur The acid concentration is in the range of 73% to 77%. 4.4 Dilute ammonia solution. 80mL concentrated ammonia water (density 0.880g/mL) was diluted to 1L with water.

5 Instruments and equipment

5.1 Constant temperature water bath. can maintain the temperature of 100 °C ± 2 °C. 5.2 Filtering device. 5.3 Constant temperature oven. The temperature can be maintained at 105 °C ± 3 °C. 5.4 Analytical balance. accuracy is 0.0002g. 5.5 Dryer. equipped with discolored silica gel. 5.6 Glass core 坩埚. Capacity 30mL ~ 50mL, microporous diameter 40μm ~ 120μm. There must be a frosted glass stopper on the bowl Or a surface glass dish. 5.7 Weighing bottles, tongs, thermometers, measuring cylinders, beakers, flasks, etc.

6 sample preparation

6.1 Sampling The sample shall be representative of all, and shall contain various yarns and fiber components constituting the fabric. The number of samples shall be sufficient for testing. 6.2 Pretreatment of the sample Take about 5g of the sample, place it in a Soxhlet extractor, extract it with petroleum ether (4.2) for 1 hour, and cycle at least six times per hour. Stone in the sample

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