SN/T 2052-2008 English PDFUS$369.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 2052-2008: Inspection of carbon monoxide residues in aquatic products for import and export-Gas chromatography method Status: Valid
Basic dataStandard ID: SN/T 2052-2008 (SN/T2052-2008)Description (Translated English): Inspection of carbon monoxide residues in aquatic products for import and export-Gas chromatography method Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: X20 Word Count Estimation: 14,170 Date of Issue: 2008-04-29 Date of Implementation: 2008-11-01 Regulation (derived from): Industry standard filing Notice 2008 No. 7 Issuing agency(ies): General Administration of Customs Summary: This standard specifies the aquatic carbon monoxide (CO) residues in sampling, sample preparation and gas chromatographic method. This standard applies to tuna, tilapia, salmon, carbon monoxide (CO) residues test. SN/T 2052-2008: Inspection of carbon monoxide residues in aquatic products for import and export-Gas chromatography method---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. Inspection of carbon monoxide residues in aquatic products for import and export-Gas chromatography method Exit inspection and quarantine industry standard book People's Republic of China Import and export of aquatic products in the amount of residual carbon monoxide Test methods Gas Chromatography Posted 2008-04-29 2008-11-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released ForewordAppendix A of this standard is an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Shanghai Entry-Exit Inspection and Quarantine Bureau, Shanghai Fisheries University. The main drafters of this standard. Li Bo, Guo Dehua, Deng Xiaojun, Jia Wu Yue, Chen Shunsheng, Yin Ping, Juan. This standard is the first release of the entry-exit inspection and quarantine industry standards. Import and export of aquatic products in the amount of residual carbon monoxide Test methods Gas Chromatography1 ScopeThis standard specifies the aquatic carbon monoxide (CO) residues of sampling, sample preparation and gas chromatographic method. This standard applies to tuna, tilapia, salmon, carbon monoxide (CO) residual amount of test.2 Sampling2.1 Inspection Lot The same species, the marine environment or culture environment, harvesting time and processing conditions are basically the same product, with no more than 1000 as a subject Test batch. The same commodity inspection lot should have the same features, such as packing, mark, origin, specification and grade. 2.2 Number of samples The number of samples in Table 1. Table 1 Number of Sampling Batch/piece minimum number of samples (packages) 1 to 1503 151 to 5008 501 to 100 015 2.3 Sampling mode Sampling of the number of packages specified at random, and to ensure that the sample size is not less than 400g, and labeled, placed in the freezer sampling boxes, and When sent to the laboratory. 2.4 Sample Storage The samples were stored frozen at -18 ℃ below.3 Determination3.1 Method summary Samples of carbon monoxide in an acidic medium, quantitative release of equilibrium is reached, the gas was taken into the gas chromatograph by armor Alkyl converter, converted to methane, were detected using a flame ionization detector. Reaction equation. CO + 3H2 350 ℃ ~ 380 ℃ Ni → catalyst CH4 + H2O 3.2 Reagents and materials Unless otherwise specified, reagents were analytical pure, distilled water. 3.2.1 sulfuric acid solution. 20% (volume fraction). 3.2.2 1-octanol. 3.2.3 Carbon monoxide standard gas. purity of greater than 99.9%. 3.2.4 Argon. purity of greater than 99.9%. ...... |
