SN/T 0621-2013 English PDFSN/T 0621: Historical versions
Basic dataStandard ID: SN/T 0621-2013 (SN/T0621-2013)Description (Translated English): Determination of hydrocarbon in beeswax for export Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: B47 Classification of International Standard: 65.140.10 Word Count Estimation: 8,839 Older Standard (superseded by this standard): SN/T 0621-1996 Quoted Standard: GB/T 8170; SN/T 1107 Regulation (derived from): AQSIQ notification issued in 2013 on the first batch of 179 entry-exit inspection and quarantine of industry standards; industry standard for filing Notice 2013 No. 9 (No. 165 overall) Issuing agency(ies): General Administration of Customs Summary: This standard specifies the export video player laser energy efficiency requirements, test methods and results of the determination. This standard applies to home laser video player, a video player including a laser device having a combination of other fe SN/T 0621-2013: Determination of hydrocarbon in beeswax for export---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 hydrocarbon in beeswax for export People's Republic of China Entry-Exit Inspection and Quarantine Standards Instead of the SN/T 0621-1996 Hydrocarbon exports beeswax test methods Issued on. 2013-03-01 2013-09-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. Instead of the standard SN/T 0621-1996 "Determination of beeswax exports of hydrocarbons." This standard compared with SN/T 0621-1996, made editorial changes. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Hebei Exit Inspection and Quarantine. The main drafters of this standard. EQUAL. This standard replaces the standards previously issued as follows. --- SN/T 0621-1996. Hydrocarbon exports beeswax test methods1 ScopeThis standard specifies the method for determination of export beeswax hydrocarbon content. This standard applies to the determination of export beeswax hydrocarbons. Measurement range. 14% to 40% (by mass).2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 8170 repair value expressed about the rules and limit values and judgment SN/T 1107 inspection of export of beeswax3 Method summarySample was dissolved in petroleum ether, purified by silica gel column. Beeswax esters, acids and other polar substances were adsorbed on silica gel to separate the non-polar carbon Hydrogen compound. Weight quantification.4 Reagents4.1 silica gel. chromatography using 100 to 200 mesh. Before using the activation 5h ~ 6h at 125 ℃ oven, placed in a desiccator removed. 4.2 petroleum ether. AR. Boiling range 30 ℃ ~ 60 ℃ (redistilled). Warning petroleum ether is flammable and explosive materials, the entire operation need to be carried out in a fume hood. 4.3 petroleum ether. AR. Boiling range 60 ℃ ~ 90 ℃ (redistilled). Warning petroleum ether is flammable and explosive materials, the entire operation need to be carried out in a fume hood.5 Equipment5.1 Analysis of balance. a sense of the amount of 0.0001g. 5.2 temperature water bath. temperature of 100 ℃ ± 2 ℃. 5.3 thermostatic oven. temperature of 125 ℃ ± 3 ℃. 5.4 dryer. equipped with color gel. 5.5 Column. length 30cm ~ 40cm, inner diameter of 2cm, with pistons and grinding mouth sand core.6 Sampling and sample preparation6.1 Sampling Press SN/T 1107 carried out. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 0621-2013_English be delivered?Answer: Upon your order, we will start to translate SN/T 0621-2013_English as soon as possible, and keep you informed of the progress. The lead time is typically in 9 seconds (download/delivered in 9 seconds). The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of SN/T 0621-2013_English with my colleagues?Answer: Yes. 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