GB/T 24115-2009 English PDFUS$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 24115-2009: Textiles -- Determination of the tetrachloroethylene residues after dry cleaned Status: Valid
Basic dataStandard ID: GB/T 24115-2009 (GB/T24115-2009)Description (Translated English): Textiles -- Determination of the tetrachloroethylene residues after dry cleaned Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: W04 Classification of International Standard: 59.080.01 Word Count Estimation: 8,854 Date of Issue: 2009-06-15 Date of Implementation: 2010-02-01 Regulation (derived from): National Standard Approval Announcement 2009 No.8 (Total No.148) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the method of gas chromatography after an electron capture detector (GC/ECD) Textiles-Determination of dry residue of tetrachlorethylene using headspace. This standard applies to all types of textile products. GB/T 24115-2009: Textiles -- Determination of the tetrachloroethylene residues after dry cleaned---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.Textiles. Determination of the tetrachloroethylene residues after dry cleaned ICS 59.080.01 W04 National Standards of People's Republic of China After the determination of dry textiles tetrachlorethylene residues Posted 2009-06-15 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordAppendix A of this standard is an informative annex. The standard proposed by China Textile Industry Association. This standard by the National Standardization Technical Committee based textile branch (SAC/TC209/SC1) centralized. This standard was drafted. Chongqing test of the fiber fabric. The main drafters of this standard. Wang Qian, Liu Gang, He Yong, high dimensional whole, Zhou Yang. After the determination of dry textiles tetrachlorethylene residues Warning. Use of this standard shall have a person experiences regular lab work. This standard does not point out all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the relevant provisions of national condition.1 ScopeThis standard specifies the use of headspace gas chromatography - after electron capture detector (GC/ECD) Textiles - Determination of dry residue of tetrachlorethylene The amount of methods to stay. This standard applies to all types of textile products. Principle 2 With headspace sampling device to extract samples of residual volatile tetrachlorethylene by gas chromatography - electron capture detector (GC/ECD) into Line qualitative and quantitative determination.3 Reagents and standard solutions3.1 PCE. chromatography. 3.2 hexane. chromatographically pure. 3.3 standard stock solution. Accurately weigh an adequate amount chromatography tetrachlorethylene (3.1) with n-hexane (3.2) formulated in a concentration of 1000μg/mL Standard stock solution. 3.4 standard solution. (3.2) stepwise diluted concentrations applicable standard working solution as needed and then n-hexane. Note. Keep in 0 ℃ ~ 4 ℃ refrigerator standard stock solution is valid for 12 months, working standard solution is valid for six months.4 instruments and equipment4.1 automatic headspace sampling device. 4.2 Gas chromatograph. equipped with electron capture detector (ECD). Step 5 Analysis 5.1 Preparation of the sample Laboratory samples taken from a representative sample was cut to 5mm × 5mm or less, and mix. Mixing a sample from the Weigh 1g, Accurate to 0.01g, placed 20mL vial. In the vial was then added 10mL of n-hexane (3.2) solvent mix. 5.2 Analytical Instruments conditions Because the test results depends on the instrument used, it is impossible to give general parameters chromatographic analysis. Using the following parameters have been certified Out of the test is appropriate. 5.2.1 headspace extraction conditions a) carrier gas pressure 120kPa; b) pressing time 30s, injection time 3s; c) vent time 20s; d) heating time 15min, the heating temperature is 50 ℃; e) Syringe temperature 55 ℃, the transmission line temperature 60 ℃. 5.2.2 Chromatographic conditions a) Column. 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