GB/T 35189-2017 English PDFUS$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 35189-2017: Determination of 131 I in marine organism--β counting method Status: Valid
Basic dataStandard ID: GB/T 35189-2017 (GB/T35189-2017)Description (Translated English): Determination of 131 I in marine organism--�� counting method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Z17 Classification of International Standard: 07.060; 13.060 Word Count Estimation: 14,166 Date of Issue: 2017-12-29 Date of Implementation: 2018-04-01 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 GB/T 35189-2017: Determination of 131 I in marine organism--β counting 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.Determination of 131 I in marine organism-β counting method ICS 07.060; 13.060 Z17 National Standards of People's Republic of China Determination of iodine -131 in marine organisms by β counting method 2017-12-29 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 method principle 2 5 Reagents and materials 2 6 instruments and equipment 3 7 sample collection and storage 3 8 Analysis Step 3 9 Results Calculation 5 10 blank test 6 11 precision and accuracy 7 Appendix A (Normative) Analysis and records of 131I in marine organisms Table 8 Reference 9 ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of this document may be patentable. The issuing agencies of this document do not bear the responsibility of identifying these patents. This standard proposed by the State Oceanic Administration. This standard by the National Marine Standardization Technical Committee (SAC/TC283) centralized. This standard was drafted by the State Oceanic Administration South China Sea Environmental Monitoring Center. The main drafters of this standard. Zhou Peng, Zhao Li, Li Dongmei, Tian Xiulai, Zhang Bao Xue, Liang Qianlin, Fang Hongda, Zheng Yuanlai, Wei Guiqiu, Huang Chuguang, Cai Wei Syria, Chen Jie, Wu Jiaxin. Determination of iodine -131 in marine organisms by β counting method Warning --- personnel using this standard should have the formal laboratory work experience. This standard does not indicate all possible safety issues question. It is the user's responsibility to take appropriate safety and health measures and to ensure compliance with the requirements of the relevant state laws and regulations.1 ScopeThis standard specifies the method for the determination of iodine -131 (hereinafter abbreviated as 131I) in marine organisms using the beta counting method. This standard applies to the determination of marine organisms (plants or animals) 131I analysis.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB 17378.3 Marine monitoring code Part 3. Sample collection, storage and transport GB 17378.6 Marine monitoring code Part 6. Organism analysis3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Radioactive decay radioactivedecay Radionuclides emit particles into another after the phenomenon of radionuclide. 3.2 Half-life radioactivehalf-life Radionuclides have half the time required for nuclear decay. 3.3 Decay constants decayconstant Indicates the probability of a nucleus decaying within a unit of time. 3.4 Background In addition to the count of samples, other counts such as cosmic rays, radioactive contamination, electromagnetic interference and other factors generated in the instrument. 3.5 Background count rate backgroundcountrate In addition to the sample of radioactivity, the count rate caused by other factors. 3.6 Detection efficiency detectionefficiency Under certain detection conditions, the number of particles detected by the detector and the total number of such particles emitted by the radiation source during the same time interval The ratio. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 35189-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 35189-2017_English as soon as possible, and keep you informed of the progress. 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