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SN/T 1507-2005 English PDF

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SN/T 1507-2005: Method of quantitative chemical analysis for lyocell/wool, lyocell/silk, lyocell/nylon, lyocell/acrylic, lyocell/polyester, lyocell/polypropylene binary fibre mixtures textiles
Status: Obsolete
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SN/T 1507-2005English239 Add to Cart 3 days [Need to translate] Method of quantitative chemical analysis for lyocell/wool, lyocell/silk, lyocell/nylon, lyocell/acrylic, lyocell/polyester, lyocell/polypropylene binary fibre mixtures textiles Obsolete SN/T 1507-2005

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Basic data

Standard ID SN/T 1507-2005 (SN/T1507-2005)
Description (Translated English) Method of quantitative chemical analysis for lyocell/wool, lyocell/silk, lyocell/nylon, lyocell/acrylic, lyocell/polyester, lyocell/polypropylene binary fibre mixtures textiles
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard W04
Classification of International Standard 59.080.01
Word Count Estimation 6,691
Date of Issue 2005-02-17
Date of Implementation 2005-07-01
Quoted Standard GB/T 8170
Regulation (derived from) Industry standard filing Notice 2005 No. 4 (No. 64 overall)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary This standard specifies the LYOCELL with wool, silk, nylon, acrylic, polyester, polypropylene two quantitative analysis of textile fiber mixtures approach. This standard applies to LYOCELL with wool, silk, nylon, acrylic, polyester, polypropylene two quantitative analysis of textile fiber mixtures.

SN/T 1507-2005: Method of quantitative chemical analysis for lyocell/wool, lyocell/silk, lyocell/nylon, lyocell/acrylic, lyocell/polyester, lyocell/polypropylene binary fibre mixtures textiles



---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.
Method of quantitative chemical analysis for lyocell/wool, lyocell/silk, lyocell/nylon, lyocell/acrylic, lyocell/polyester, lyocell/polypropylene binary fibre mixtures textiles Book of the People's Republic of China Entry and Exit Inspection and Quarantine Polyester, polypropylene two-component fiber blended textile Quantitative chemical analysis Released on.2005-02-17 2005-07-01 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, Ningbo Entry-Exit Inspection and Quarantine Bureau, Henan Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Bao Hongyu, Zhao Yuyin, Yang Lisheng, Yang Hua, Guo Huiqing, Wang Weihua, Xu Wei. This standard is the first industry standard for entry-exit inspection and quarantine. Quantitative chemical analysis method for two-component fiber blended textiles

1 Scope

This standard specifies the quantitative analysis of Lyocel and wool, mulberry, nylon, acrylic, polyester, polypropylene two-component fiber blended textiles. method. This standard applies to the quantitative analysis of Lyocel and wool, mulberry, nylon, acrylic, polyester, polypropylene two-component fiber blended textiles.

2 Normative references

The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. GB/T 8170 digital rounding rules

3 Principle

Dissolving wool and mulberry silk with sodium hypochlorite, leaving Lyocel fiber; dissolving nylon fiber with formic acid, remaining Lyocel fiber; Methylformamide dissolves the acrylic fiber, leaving the Lyocel fiber; dissolves the Lyocel fiber with sulfuric acid, and retains the polyester fiber and the polypropylene fiber.

4 reagents

4.1 Distilled or deionized water. 4.2 petroleum ether, distillation range is 40 ° C ~ 60 ° C. 4.3 1mol/L sodium hypochlorite (containing 5g/L±0.5g/L sodium hydroxide), calibrated by iodometric method, the concentration is 1mol/L±0.1mol/L range. 4.4 Dilute acetic acid solution. 5 mL of glacial acetic acid was diluted to 1000 mL with tertiary water. 4.5 80% formic acid. 4.6 Dilute ammonia solution. 80mL concentrated ammonia water (density 0.880g/mL) was diluted to 1L with water. 4.7 Dimethylformamide (density 0.950 g/mL). 4.8 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%. Note 1. The reagents used are all chemically pure. Note 2. Dimethylformamide is toxic, pay attention to protection.

5 instruments

5.1 Analytical balance. accuracy is 0.0002g. 5.2 Constant temperature water bath. keep the temperature at 100 °C ± 2 °C. 5.3 Constant temperature oven. keep the temperature at 105 °C ± 3 °C. 5.4 Filtering device. 5.5 Dryer. equipped with discolored silica gel. 5.6 Glass core 坩埚. Capacity 30mL ~ 50mL, microporous diameter 40μm ~ 80μm.

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