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GB/T 36700.5-2018Chemicals—Guidance on hazard classification to the aquatic environment—Part 5: Bioconcentration (English PDF)

化学品 水生环境危害分类指导 第5部分:生物富集

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 17, 2018

Implementation date

April 1, 2019

Scope

GB/T 36700.5-2018 is the English-translated version of 化学品 水生环境危害分类指导 第5部分:生物富集.

GB/T 36700.5-2018 is Part 5 of the Chinese guidance on classifying chemicals for hazards to the aquatic environment, and deals with bioconcentration.

It explains how bioconcentration enters the classification, how to interpret the bioconcentration factor (BCF) and the n-octanol/water partition coefficient (Kow), what to watch for with particular categories of chemicals, and what to do when BCF or Kow data are missing or contradictory.

It builds on the classification rules of GB 30000.28 and relies on fish bioconcentration tests such as GB/T 21800 and GB/T 21858, on the partition coefficient methods of GB/T 21852 and GB/T 21853, and on OECD, ASTM and US EPA test guidance.

It is meant for those who classify chemicals and assess their test data. It was issued on 17 September 2018 and has applied since 1 April 2019.

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Document preview — GB/T 36700.5-2018

National Standard of the People's Republic of China

ICS
13.300
Classification
A 80

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Terms and definitions, abbreviations

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 fifth 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 an overview of the classification of chemical aquatic environmental hazards involving biological enrichment, data interpretation, special notes Guidance on the lack of BCF and Kow values for chemical categories and contradictory data and data.

This section applies to the guidance of biological enrichment 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 document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 21800 chemical bioconcentration flow fish test

GB/T 21815.1 Chemical biodegradability shake flask test in seawater

GB/T 21852 chemical partition coefficient (n-octanol-water) high performance liquid chromatography test

GB/T 21853 chemical partition coefficient (n-octanol-water) shake flask test

GB/T 21858 chemical bioaccumulation semi-static fish test

GB 30000.28 Classification and labelling of chemicals - Part 28. Harm to the aquatic environment

GB/T 36700.6 Guidance for the classification of aquatic environmental hazards - Part 6. Quantitative structural activity (QSAR)

GB/T 36700.7 Classification guide for aquatic environmental hazards - Part 7. Classification of metals and metal compounds

ASTME1022-94 Standard Guide for Bioaccumulation of Fish and Seawater Bivalve molluscs (StandardGuidefor ConductingBioconcentrationTestswithFishesandSaltwaterBivalveMolusks)

OECDNO.23 Guide to Aquatic Toxicity Testing of Difficult Substances and Mixtures (Guidancedocumentonaquatictoxicity Testingofdifficultsubstancesandmixtures)

OECD123 Partition coefficient (n-octanol/water) Slow mixing method [PartitionCoefficient(1-Octanol/Water).Slow- Stirring method]

USEPAOCSPP830.7560 n-octanol-water partition coefficient column generation method [PartitionCoefficient(n-octanol/ Water),GeneratorColumnMethod]

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 Bioconcentration factor; BCF

The ratio of the concentration of the test substance in the test organism (or specific tissue) to the concentration of the test substance in the test medium.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

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