GB/T 35523-2017 English PDFUS$439.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 35523-2017: Chemicals -- Aerobic mineralisation in surface water -- Simulation biodegradation test Status: Valid
Basic dataStandard ID: GB/T 35523-2017 (GB/T35523-2017)Description (Translated English): Chemicals -- Aerobic mineralisation in surface water -- Simulation biodegradation test Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A80 Classification of International Standard: 13.300; 13.020.40 Word Count Estimation: 22,250 Date of Issue: 2017-12-29 Date of Implementation: 2018-07-01 Regulation (derived from): National Standards Bulletin 2017 No. 32 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 35523-2017: Chemicals -- Aerobic mineralisation in surface water -- Simulation biodegradation test---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. Chemicals - Aerobic mineralization in surface water - Simulation biodegradation test ICS 13.300; 13.020.40 A80 National Standards of People's Republic of China Chemicals Surface water aerobic mineralization Biodegradation simulation test 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 subjects information 3 5 test principle 4 6 Reference substance 4 7 Test Method Overview 4 8 Test Procedure 6 9 Quality Assurance and Quality Control 8 10 Data and reports 9 Appendix A (Normative) Semi-continuous operation 14 Appendix B (Normative) Determination of 14CO2 15 Appendix C (Normative) 14C phase allocation 16 References 17 ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard and the OECD Guidelines for the Testing of Chemicals No. 309 (2004) "Aerobic Mineralization in Surface Water - Biodegradation Simulation Test "(English version) of the same technical content. This standard by the National Standardization Technical Committee of hazardous chemicals management (SAC/TC251) and focal point. This standard was drafted by the Ministry of Environmental Protection Solid Waste and Chemicals Management Technology Center, Beijing Normal University, Zhejiang Academy of Agricultural Sciences, Nanjing Environmental Science Research Institute, Shanghai Testing Center, Shenyang Institute of Chemical Safety Evaluation Center, Zhejiang Chemical Industry Research Institute, Guangdong Provincial Institute of Microbiology. The main drafters of this standard. Liu Chunxin, Zhu Jianrong, Yu Lina, Cai Lei Ming, Shi Lili, Yang Jing, Han Xue, Liu Xinyang, Mei Chengfang, Tang Baohua, Chen Jie.IntroductionThe purpose of this test is to measure the aerobic biodegradation of low concentrations of test substances in natural water and to use a kinetic rate expression To quantify the results. This mock test is a batch shake flask test conducted in a laboratory to determine the extent to which organic matter is present in nature Aerobic biodegradation in water (freshwater, salt water, seawater). This is based on the ISO /DIS14592-1 [1] standard test and contains GB/T 27853-2011, GB/T 27856-2011 [2-3]. According to the need, but also can be used for a long time semi-continuous test instead of intermittent batch test, To prevent microbial degradation in the test system. The primary purpose of this simulation test is to determine the mineralization and mineralization of the test substance in surface water Basis of biodegradation kinetics. The second purpose of this experiment is to determine the primary biodegradation process and the formation of major transformation products. Kam Do not convert the product species, if possible, and its concentration should be measured quantitatively, which is slow for the mineralization of the material (for example, the residual 14C half-life of more than 60d material) is very important. Due to the limitations of the analytical methods, the major conversion products can be identified and quantified using high concentrations of Test substance (eg, greater than 100 μg/L). The low concentration in the experiment is to ensure that the kinetic relationship between the biodegradation experiment can accurately reflect the situation in the natural environment, Test substance content is low enough (eg, less than 1μg/L ~ 100μg/L). With the total amount of bioavailable organic matter present in the body of water in nature In contrast, low levels of the test substance are only used as a secondary matrix. In this way, the test substance may be co-metabolic degradation, biodegradation kinetics Performance for the zero-order response ("no growth" kinetics). First-class biodegradation kinetics refers to the degradation rate of the test substance (mg · L-1 · d-1) and Matrix concentration (decrease over time) showed a linear relationship. For a true first-order degradation reaction, the degradation rate constant k is not constant with the time and the test substance Degree changes and changes. That is, k is basically unchanged in the course of the test and does not change with the concentration of the test substance added in the experiment. accurate In other words, the rate constant of degradation is expressed as the change in concentration versus time, k = (1/C) · (dC/dt). Despite the given conditions, usually Greek Looking forward is a first-order kinetic reaction, but in many cases more in line with other reaction kinetics. For example, when the rate of bioconversion is mainly affected Matrix transfer (such as diffusion rate) limit, will deviate from the first-class kinetics of degradation. However, the rate constant of degradation is often related to the concentration, and thus more Quasi-first-order kinetics to describe. Prior to the test, the biodegradation information of the test substance at high concentrations is confirmed (for example, from standard screening tests) as well as abiotic Degradation, transformation products and related physical and chemical properties and other information, contribute to the experimental design and result analysis. 14C labeled test substance And the phase distribution of 14C measured at the end of the experiment to obtain the final biodegradation information. If you use a non-labeled test substance, only the use of high concentration Degree test and all the transformation products are known to get the final biodegradation information. Chemicals Surface water aerobic mineralization Biodegradation simulation test1 ScopeThis standard specifies the chemicals surface water aerobic mineralization biodegradation terms and definitions of simulation tests, the test substance information, the original test Management, Reference Materials, Overview of Test Methods, Test Procedures, Quality Assurance and Quality Control, Data and Reports. This standard applies to the evaluation of low concentrations of non-volatile or low volatile organic chemicals (including radioisotope labels or non-marking Aerobic biodegradation in natural waters. This standard can be used to simulate the chemical determination of biodegradability of crude particles in surface water or turbid surface water.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. Respiratory inhibition test of activated sludge of chemical products GB/T 21796 GB/T 21801 Rapid biodegradation of chemicals - Respiration measurement test GB/T 21802 Rapid Improvement of Biodegradability of Chemicals by MITI Test (Ⅰ) GB/T 21803 Fast biodegradable DOC degradation test GB/T 21816 Chemical Intrinsic Biodegradability Zahn-Wyeth test GB/T 21817 chemical inherent biodegradability improved semi-continuous activated sludge test GB/T 21818 Improved inherent biodegradability of chemicals MITI test (Ⅱ) GB/T 21831 Rapid biodegradable chemicals closed bottle test GB/T 21845 chemical water solubility test GB/T 21851 chemical batch equilibrium test adsorption/desorption test Chemical partition coefficient (n-octanol - water) HPLC test Chemical partition coefficient (n-octanol-water) Shaking flask method test GB/T 21853 GB/T 21855 Chemical pH-related hydrolysis test GB/T 21856 Rapid chemical biodegradation of carbon dioxide production test GB/T 21857 rapid biodegradation of chemicals improved OECD screening test GB/T 22052 with a liquid vapor pressure gauge liquid vapor pressure and temperature and the relationship between the initial decomposition temperature GB/T 22228 Industrial chemicals solid and liquid vapor pressure in the range of 10-1Pa to 105Pa Determination of static method GB/T 22229 industrial chemicals solid and liquid vapor pressure in the range of 10-3Pa to 1Pa Determination of vapor pressure level Balance method GB/T 27850 General rules of fast biodegradability of chemicals Aerobic anaerobic conversion test of GB/T 27853 Chemicals water - sediment system Aerobic anaerobic conversion test in soil GB/T 27856 OECD Chemicals Test Guide No. 104 Vapor Pressure (Vapor Pressure) OECD Chemicals Test Guide No. 112 Water Dissociation Constants in Water ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 35523-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 35523-2017_English as soon as possible, and keep you informed of the progress. 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