GB/T 21854-2025Chemicals — Fish early-life stage toxicity test (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document replaces GB/T 21854-2008 “Chemicals - Toxicity to Early Life Stages of Fish” and is consistent with GB/T 21854-2008.

In addition to structural adjustments and editorial changes, the main technical changes are as follows.

— Added the terms and definitions of "harpoon length", "standard length of fish", "full length of fish", "effect concentration" and "unknown complex substance" (see 3.1~3.4, 3.7);

— Changed the test substance information content (see Chapter 4, Chapter 3 of the 2008 edition);

— Changed the test principle (see Chapter 5, 4.1 of the 2008 edition);

— Changed the instrumentation (see Chapter 6, Chapter 5 of the 2008 edition);

— Changed the test preparation and test procedures (see Chapters 7 and 8, Chapters 6 and 7 of the 2008 edition);

— Modified quality assurance and quality control (see Chapter 9, Chapter 8 of the 2008 edition);

— Changed data and reporting (see Chapter 10, Chapter 9 of the 2008 edition).

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is proposed and coordinated by the National Technical Committee for Standardization of Hazardous Chemicals Management (SAC/TC251).

This document was drafted by: Solid Waste and Chemicals Management Technology Center of the Ministry of Ecology and Environment, Liaoning Provincial Ecological Environment Affairs Service Center, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Shanghai Testing Center, Beijing Normal University, Shanghai Academy of Environmental Sciences, Guangdong Academy of Sciences Institute of Microbiology (Guangdong Provincial Microbiological Analysis and Testing Center).

The main drafters of this document are: Liu Xiaojian, Liu Hongying, Teng Xiaoming, Bai Yang, Wang Lei, Ma Yan, Yang Li, Yang Kun, Dong Mengqi, Li Wenchao, Yang Li, Li Feifan, Chen Xiaoqian, Liu Jining, Hu Shuangqing, Chen Guilan, Yang Xichen, Zhang Hongchang, Hu Junjie, and Lu Ling.

The previous versions of this document and the documents it replaces are as follows.

— First published in 2008 as GB/T 21854-2008;

— This is the first revision.

1 Scope

This document specifies the test substance information, instrumentation, test system, test procedures, quality control, and other related information for the early life stage toxicity test of chemicals in fish.

Quality assurance and quality control, data and reporting requirements.

This document is applicable to the testing of chemicals for lethal and sublethal effects on early life stages of fish to evaluate chronic toxicity and Subchronic toxic effects.

2 Normative references

This document has no normative references.

3 Terms and Definitions

The following terms and definitions apply to this document.