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   US$239.00 · In stock Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 2688-2010: Determination of polycycliearomatic hydrocarbons in capacitor electrolytes from used electrical and mechanical products. Gas chromatography/mass spectrometry Status: Valid    
      
    
  
	
		
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			| SN/T 2688-2010 | English | 239 | 
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                    Determination of polycycliearomatic hydrocarbons in capacitor electrolytes from used electrical and mechanical products. Gas chromatography/mass spectrometry
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                    SN/T 2688-2010
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  Basic data             |  Standard ID  |          SN/T 2688-2010 (SN/T2688-2010) |               |  Description (Translated English)  |          Determination of polycycliearomatic hydrocarbons in capacitor electrolytes from used electrical and mechanical products. Gas chromatography/mass spectrometry |               |  Sector / Industry  |          Commodity Inspection Standard (Recommended) |               |  Classification of Chinese Standard  |          J04 |               |  Classification of International Standard  |          25.010 |               |  Word Count Estimation  |          9,999 |               |  Date of Issue  |          2010-11-01 |               |  Date of Implementation  |          2011-05-01 |               |  Regulation (derived from)  |          National Quality Inspection (2010) 582 |               |  Issuing agency(ies)  |          General Administration of Customs |               |  Summary  |          This standard specifies the old mechanical and electrical products capacitor electrolyte PAHs GC mass spectrometry. This standard applies to the old mechanical and electrical products Determination of polycyclic aromatic hydrocarbons in electrolyte capacitors.  |         
  SN/T 2688-2010: Determination of polycycliearomatic hydrocarbons in capacitor electrolytes from used electrical and mechanical products. Gas chromatography/mass spectrometry ---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 polycycliearomatic hydrocarbons in capacitor electrolytes from used electrical and mechanical products.Gas chromatography/mass spectrometry
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Determination of the old mechanical and electrical products PAHs in electrolyte capacitors
Gas chromatography - mass spectrometry
Issued on. 2010-11-01
2011-05-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
The standard by the China Academy of Inspection and Quarantine is responsible for drafting.
The main drafters of this standard. Ma Qiang, Xiao Haiqing, birch, Zhang, Sun Huiyuan, sea seats to Wang Ye, Liu Qian, Wang Han, Wang Chao.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination of the old mechanical and electrical products PAHs in electrolyte capacitors
Gas chromatography - mass spectrometry
1 Scope
This standard specifies the old mechanical and electrical products in the electrolyte capacitor of polycyclic aromatic hydrocarbons by gas chromatography - mass spectrometry.
This standard applies to the determination of the old mechanical and electrical products PAHs in electrolyte capacitors.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
PAHs PolycyclicAromaticHydrocarbons, PAHs
Molecules containing two or more benzene hydrocarbons. PAHs in this section refer to Table 1 of 16 hydrocarbons.
3 Method summary
Samples with n-hexane - methylene chloride extraction, dried over anhydrous sodium sulfate, filtered, and concentrated by gas chromatography - mass spectrometry measurement.
4 Reagents and materials
Unless otherwise indicated, the reagents used were of analytical grade.
4.1 n-hexane, chromatography.
4.2 methylene chloride, chromatography.
4.3 n-hexane - methylene chloride (2 1, V1 V2).
4.4 anhydrous sodium. 650 ℃ burning 3h, after cooling stored in a desiccator.
4.5 PAHs standard stock solution (1000mg/L). Weigh 16 PAHs standard material 0.1000g, with dichloromethane
(4.2) and dilute to 100mL flask were dissolved, and frozen stored.
4.6 PAHs mixed standard stock solution (40mg/L). accurate Pipette respectively 16 PAHs standard stock solution (4.5) 1mL to
25mL flask with dichloromethane (4.2) to the mark, refrigerated stored.
4.7 PAHs standard solution. take a certain amount of PAHs mixed standard stock solution (4.6), diluted with dichloromethane (4.2) to prepare a
Concentration of 0.05mg/L, 0.1mg/L, 0.5mg/L, 1mg/L, 2mg/L of standard solution.
5. Apparatus
5.1 Gas chromatography - mass spectrometry.
5.2 nitrogen blowing instrument.
5.3 The organic phase membrane, 0.45μm.
5.4 Analytical balance, a sense of the amount of 0.1mg.
   
   
  
  
    
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