GB/T 36700.7-2018 English PDF

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GB/T 36700.7-2018: Chemicals -- Guidance on hazard classification to the aquatic environment -- Part 7: Classification of metals and metal compounds
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 36700.7-2018	199	Add to Cart	3 days	Chemicals -- Guidance on hazard classification to the aquatic environment -- Part 7: Classification of metals and metal compounds	Valid

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Basic data

Standard ID: GB/T 36700.7-2018 (GB/T36700.7-2018)
Description (Translated English): Chemicals -- Guidance on hazard classification to the aquatic environment -- Part 7: Classification of metals and metal compounds
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300
Word Count Estimation: 10,176
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 36700.7-2018: Chemicals -- Guidance on hazard classification to the aquatic environment -- Part 7: Classification of metals and metal compounds

---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 7. Classification of metals and metal compounds ICS 13.300 A80 National Standards of People's Republic of China Chemical aquatic environmental hazard classification guide Part 7. Classification of metals and metal compounds Part 7. Classificationofmetalsandmetalcompounds 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 seventh 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, Hefei University of Technology, China Chemical Industry and Technology Development Center, Shanghai Chemical Research Institute Co., Ltd., Huafeng Group Co., Ltd., Beijing Guoshi Ankang Technology Co., Ltd., Jiangsu Chengxing Phosphorus Chemical Co., Ltd. The main drafters of this section. Wen Jinsong, Lu Ling, Han Fang, Ke Yunhui, Zhang Lei, Yan Xuedong, Wang Xinchen, Ma Yan, Sun Wei, Liu Xiaojian, Cao Mengran, Shang Zhao Cong. Chemical aquatic environmental hazard classification guide Part 7. Classification of metals and metal compounds

1 Scope

This part of GB/T 36700 specifies the aquatic toxicity data for the classification of metals and metal compounds in the classification of chemical aquatic environmental hazards. And the application of solubility data in classification and the application of classification criteria for metals and metal compounds. This section applies to the guidance on the classification of metals and metal compounds in the classification of chemical aquatic environmental hazards. This section does not apply to organometallic compounds.

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 36700.3 Classification guide for aquatic environmental hazards - Part 3. Hydrotoxicity GB/T 36700.8 Guidance for the classification of aquatic environmental hazards - Part 8. Transfer of metals and metal compounds in aqueous media Chemical/dissolution guidance

3 Abbreviations

The following abbreviations apply to this document. BCF. Bioconcentration factor BLM. Bioligand Model CHESS. Soil chemical model (Chemical equiilibriasolutions) EC50. half effect concentration (Concentrationfor50%ofmaximaleffect) LC50. half lethal concentration (Lethal concentration 50) MINTEQ. Environmental Water Chemistry Balance Model NOEC. No obvious effect concentration (Noobservedeffectconcentration) WHAM. Windermere humic acid model (Windermere-humicaqueousmodel)

4 Basic principles

4.1 Particularity of classification of metals and metal compounds 4.1.1 When the metal is in the elemental state, it is insoluble in water but can be converted into a usable state. When the metal is in the elemental state, it can be mixed with water or A dilute aqueous electrolyte solution reacts to form soluble ions, and the metal is oxidized from neutral or zero valence to a higher valence state. 4.1.2 In simple metal compounds (such as oxides or sulfides), the metal is already in an oxidized state, and when it is dissolved in water, the metal further The possibility of being oxidized is low, but the reaction with the medium may produce more dissolved state. Insoluble metal compounds can be regarded as A product that dissolves and can produce a small amount of available form by dissolution. The final dissolved concentration is affected by many factors, including The dissolution product of certain metal compounds precipitated during the conversion/dissolution test. ......

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