GB/T 36700.6-2018 English PDF

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GB/T 36700.6-2018: Chemicals -- Guidance on hazard classification to the aquatic environment -- Part 6: Quantitative structure-activity relationship (QSAR)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 36700.6-2018	199	Add to Cart	3 days	Chemicals -- Guidance on hazard classification to the aquatic environment -- Part 6: Quantitative structure-activity relationship (QSAR)	Valid

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Basic data

Standard ID: GB/T 36700.6-2018 (GB/T36700.6-2018)
Description (Translated English): Chemicals -- Guidance on hazard classification to the aquatic environment -- Part 6: Quantitative structure-activity relationship (QSAR)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300
Word Count Estimation: 10,138
Date of Issue: 2018-09-17
Date of Implementation: 2019-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 36700.6-2018: Chemicals -- Guidance on hazard classification to the aquatic environment -- Part 6: Quantitative structure-activity relationship (QSAR)

---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 - Guidance on hazard classification to the aquatic environment - Part 6. Quantitative structure-activity relationship (QSAR) ICS 13.300 A80 National Standards of People's Republic of China Chemical aquatic environmental hazard classification guide Part 6. Quantitative Structure Activity Relationship (QSAR) Part 6. Quantitativestructure-activityrelationship (QSAR) Published on.2018-09-17 Implementation of.2019-04-01 State market supervision and administration China National Standardization Administration issued

Foreword

GB/T 36700 "Chemical Aquatic Environmental Hazard Classification Guidance" is divided into the following eight parts. --- Part 1. Introduction; --- Part 2. Unified classification method; ---Part 3. Aquatic toxicity; --- Part 4. Degradation; --- Part 5. Bioconcentration; --- Part 6. Quantitative structure activity relationship (QSAR); --- Part 7. Classification of metals and metal compounds; --- Part 8. Guidance for the conversion/dissolution of metals and metal compounds in aqueous media. This part is the sixth part of GB/T 36700. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed and managed by the National Technical Committee for Standardization of Hazardous Chemicals Management (SAC/TC251). This section drafted by. Anhui Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Ministry of Environmental Protection Solid Waste and Chemicals Management Technology Center, Changzhou Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, China Chemical Industry and Technology Development Center, Shanghai Chemical Research Institute Co., Ltd. Huafeng Group Co., Ltd., Beijing Guoshi Ankang Technology Co., Ltd., Tsinghua University, Jiangyin Chengxing Daily Chemical Co., Ltd. The main drafters of this section. Wen Jinsong, Lu Ling, Wang Rong, Ji Yiwu, Zhang Lei, Yan Xuedong, Tian Yu, Wang Xinchen, Sun Wei, Teng Xiaoming, Cao Mengran, He Shaopeng, Huang Jun, Wang Bin. Chemical aquatic environmental hazard classification guide Part 6. Quantitative Structure Activity Relationship (QSAR)

1 Scope

This part of GB/T 36700 specifies the classification of chemicals for aquatic environmental hazards involving quantitative structure activity relationship (QSAR) methods. Test factors, model selection, and use that lead to dangerous underestimation. This section applies to the guidance on the use of QSAR for the classification of chemical aquatic environmental hazards.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 21853 chemical partition coefficient (n-octanol-water) shake flask test GB/T 29882 Miscellaneous dangerous substances and articles - Classification test method n-octanol/water partition coefficient GB 30000.28 Classification and labelling of chemicals - Part 28. Harm to the aquatic environment 3 terms and definitions, abbreviations 3.1 Terms and definitions The following terms and definitions defined in GB 30000.28 apply to this document. 3.1.1 Excess toxicity Substance exhibits toxicity beyond the predicted value. 3.2 Abbreviations The following abbreviations apply to this document. BCF. Bioconcentration factor Kow. n-octanol-water partition coefficient (n-octanol-waterpartitioncoefficient) LFER. Linear free-energyrelationship QSAR. Quantitative structure-activityrelationship

4 Test factors that lead to underestimation of risk

4.1 Non-electrolytic substances Some non-electrolytic substances are more toxic than QSAR predictions unless the test results are small. These tests Test factors, such as hydrocarbons that are easily volatilized during the test, as well as strong hydrophobic compounds in the acute toxicity test due to testing Insufficient deficiencies make it difficult to achieve a steady state between the aqueous phase concentration (aquarium test solution) and the concentration of the internal hydrophobic site that produces an anesthetic effect. only To establish this balance during the test time, the relationship between lgKow and lgC of the low reactivity non-electrolytic material is linear. this ......

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