GB/T 36700.7-2018Chemicals—Guidance on hazard classification to the aquatic environment—Part 7:Classification of metals and metal compounds (English PDF)

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.

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 document. 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 equilibria solutions)

EC50. half effect concentration (Concentration for 50% of maximal effect)

LC50. half lethal concentration (Lethal concentration 50)

MINTEQ. Environmental Water Chemistry Balance Model

NOEC. No obvious effect concentration (No observed effect concentration)

WHAM. Windermere humic acid model (Windermere humic aqueous model)

4 Basic principles