SN/T 2402-2009 English PDFUS$239.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 2402-2009: Determination of migration of dichloromethane and trichloroethylene in toys Status: Valid
Basic dataStandard ID: SN/T 2402-2009 (SN/T2402-2009)Description (Translated English): Determination of migration of dichloromethane and trichloroethylene in toys Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: Y57 Classification of International Standard: 97.200.50 Word Count Estimation: 9,930 Date of Issue: 2009-09-02 Date of Implementation: 2010-03-16 Quoted Standard: GB/T 6682 Adopted Standard: EN 71-10-2005, MOD; EN 71-11-2005, MOD Regulation (derived from): Entry-Exit Inspection and Quarantine circular industry standards (2009. 09. 02) Issuing agency(ies): General Administration of Customs Summary: This standard specifies the toys in methylene chloride and trichlorethylene occupational migration Ying air phase chromatographic method. This standard applies to polymeric materials and toys toys with adhesive stickers in methylene chloride and trichlorethylene migrated content. SN/T 2402-2009: Determination of migration of dichloromethane and trichloroethylene in toys---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.Determination of migration of dichloromethane and trichloroethylene in toys Exit inspection and quarantine industry standard book People's Republic of China Determination of toys methylene chloride and trichlorethylene migration of Posted 2009-09-02 2010-03-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released ForewordThe reference to the standard EN71-10.2005 "organic sample preparation and extraction" (in English) in Section 6 and EN71-11. 2005 "The method of analysis of organic compounds" (in English) in section 5.5.4. The Standard Appendix A, Appendix B and Appendix C are informative appendix. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. Chinese Academy of Inspection and Quarantine, Shenzhen People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. birch, Zhang, Li Xuan, Xiao Haiqing, strong horse. This standard is the first release of the entry-exit inspection and quarantine industry standards. Determination of toys methylene chloride and trichlorethylene migration of1 ScopeThis standard specifies the top toys of methylene chloride and trichlorethylene air migration phase chromatographic method. Methylene chloride and trichlorethylene migration measuring This standard applies to polymeric materials and toys with adhesive stickers class toys.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6682 analytical laboratory use specifications and test methods Principle 3 After deionized water was extracted toys as an analog of methylene chloride and trichlorethylene (see Appendix A), the extract was filtered using top Air phase chromatography separation and detection. According to their retention time qualitative, external standard.4 Reagents and materialsUnless otherwise indicated, the reagents used were of analytical grade, test water should be consistent with GB/T 6682 a water standards. 4.1 high purity nitrogen purity. ≥99.99%. 4.2 acetone. 4.3 sodium chloride. 4.4 dichloromethane standards. purity ≥99.5%. 4.5 Trichloroethylene standards. purity ≥99.5%. 4.6 standard stock solution (see Table 1). Pipette a certain volume of standard products to 100mL volumetric flask with acetone (4.2) constant volume, mix preparation Standard stock solution. The solution was sealed and stored at 3 ℃ ~ 5 ℃ in the dark, it can be stored for three months. Table 1 formulated standard stock solution Substance Volume/μL Density/(g/mL) concentration/(mg/L) Dichloromethane 300 1.325 3980 Trichloroethylene 100 1.476 1480 4.7 intermediate standard solution. Pipette respectively 0.2mL, 0.5mL, 1.0mL, 2.0mL and 5.0mL standard stock solution of (4.6) to 100mL flask, constant volume with acetone to prepare a series of standard intermediate solution, wherein the concentration of methylene chloride and trichlorethylene are shown in Table 2 FIG. Table 2 standard intermediate solution of each substance concentration in mg per liter Substance 1 # 2 # 3 # 4 # 5 # Dichloromethane 8204080200 Trichlorethylene 3 7.5 153 075 ...... |
