GB/T 21802-2008 English PDFUS$234.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 21802-2008: Chemicals -- Ready biodegradability -- Modified MITI test (I) Status: Valid
Basic dataStandard ID: GB/T 21802-2008 (GB/T21802-2008)Description (Translated English): Chemicals -- Ready biodegradability -- Modified MITI test (I) Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A80 Classification of International Standard: 13.300; 13.020.40 Word Count Estimation: 12,16 Date of Issue: 2008-05-12 Date of Implementation: 2008-09-01 Adopted Standard: OECD No.301C-1992, IDT Regulation (derived from): Announcement of Newly Approved National Standards No. 7, 2008 (No. 120 overall) 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 Summary: This standard specifies the chemical biodegradability improvement MITI test method overview, test preparation, test procedures, quality assurance and quality control, data and reports. This standard applies to water-soluble or insoluble in water, adsorption, volatile or non- volatile chemicals rapid biodegradability. GB/T 21802-2008: Chemicals -- Ready biodegradability -- Modified MITI test (I)---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. Ready biodegradability. Modified MITI test (I) ICS 13.300; 13.020.40 A80 National Standards of People's Republic of China Chemicals biodegradability Modified MITI test (Ⅰ) Posted 2008-05-12 2008-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard is identical with the Organisation for Economic Co-operation and Development (OECD) guidelines for testing of chemicals No. 301C (1992 Nian) "Improved MITI (Ⅰ) test "(in English). This standard made the following editorial changes. --- The units of measurement to our legal units of measurement. This standard Annex A, Annex B and Annex C is informative appendix. This standard is managed by the National Standardization Technical Committee chemicals dangerous (SAC/TC251) and focal points. This standard is drafted by. Environmental Protection Department of Chemical Registration Center. Participated in the drafting of this standard. Nanjing Institute of Environmental Sciences Department of Environmental Protection, the test center in Shanghai, Shenyang Chemical Research Institute safety assessment Price Center. The main drafters of this standard. Yang Li, Liu Chun new, high reflect the new, mono-n-Jun, Liu Jining, Chen Xiaoqian, Ding Qi. Chemicals biodegradability Modified MITI test (Ⅰ)1 ScopeThis standard specifies the chemical biodegradability Modified MITI test (Ⅰ) method overview, test preparation, test procedures, quality Assurance and quality control, data and reports. This standard applies to water-soluble or insoluble in water, adsorption, volatile and non-volatile chemicals rapid biodegradability.2 Terms and definitionsThe following terms and definitions apply to this standard. 2.1 Test substance exhibiting a limited time in contact with the inoculum biodegradability. 2.2 Test substance causes chemical changes in the structure characteristic of the process of loss under biological effect. 2.3 Solution, organic carbon content, usually through the 0.45μm membrane filter liquid organic carbon content, or by 4000r/min transfer Supernatant after centrifugation 15min organic carbon content. 2.4 The amount of oxygen consumed by the microbial decomposition of organic matter, can be expressed as the number of milligrams of oxygen (mg/mg) of the test substance consumed per milligram. 2.5 Calculated according to the formula of the total amount of the test substance is completely oxidized oxygen required, it can be expressed as oxygen consumption per mg of the test substance in mg The number of grams (mg/mg). 2.6 Start of the test to the degradation rate of 10% of the period. 2.7 10d test time biodegradation rate of 10% after. 2.8 Standstill period to the end of the degradation rate of 90% of the maximum degradation rate of the period.3 test substance informationa) the formula; ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 21802-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 21802-2008_English as soon as possible, and keep you informed of the progress. 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