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GB/T 44706-2024: Chemicals - Sediment-water corbicula fluminea toxicity test
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Chemicals - Sediment-water corbicula fluminea toxicity test
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Standard similar to GB/T 44706-2024 GB 45835 | GB/T 42368 | GB/T 41854 | GB/T 44708 | GB/T 44707 | Basic data | Standard ID | GB/T 44706-2024 (GB/T44706-2024) | | Description (Translated English) | Chemicals - Sediment-water corbicula fluminea toxicity test | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A80 | | Classification of International Standard | 13.300 | | Word Count Estimation | 15,168 | | Date of Issue | 2024-10-26 | | Date of Implementation | 2025-05-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 44706-2024: Chemicals - Sediment-water corbicula fluminea toxicity test---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT44706-2024
Chemicals - Sediment-water corbicula fluminea toxicity test
Chemical Sediment and Clam Toxicity in Water Systems
test
Chemicals-Sediment﹘water corbicula fluminea toxicity test
ICS 13.300
CCS A 80
National Standard of the People's Republic of China
Released on October 26, 2024
Implementation on May 1, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface... Ⅲ
1 Scope... 1
2 Normative references... 1
3 Terms and Definitions 1
4 Test Principle... 2
5 Test substance information... 2
6 Test System... 2
7 Instruments and Equipment... 3
8 Test Procedure... 3
9 Quality Assurance and Quality Control... 5
10 Data and Reports 5
Appendix A (Informative) Biological Characteristics of Clams... 7
Appendix B (Normative) Chemical Characteristics of Test Water 8
Appendix C (Informative) Composition of Prepared Sediment 9
References... 10
Preface
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 is required.
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/TC 251).
This document was drafted by. Chinese Research Academy of Environmental Sciences, Nankai University, China Inspection and Testing (Tianjin) Co., Ltd.,
Chinese Academy of Inspection and Quarantine, Nanchang University, Ocean University of China, and Nanjing University.
The main drafters of this document are. Liu Zhengtao, Li Ji, Zhu Lingyan, Zhang Yanfeng, Yan Zhenguang, Wang Xiaonan, Chen Huiming, Zhou Lili, Ge Gang,
Li Zhengyan, Wang Shanghong, Li Mei, Wang Zunyao, Sun Cheng, Zheng Xin, Zhang Mingming, and Wu Di.
Chemical Sediment ﹘ Clam Toxicity in Water Systems
test
1 Scope
This document specifies the test principle, test substance information, test system, instrument design, and other aspects of the toxicity test for Clamaria fluvial in chemical sediment-water systems.
Equipment, test procedures, quality assurance and quality control, data and reporting.
This document applies to the testing of toxic effects of chemicals on Clams in freshwater sediments.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the latest version (including all amendments) applies to this document.
In this document.
GB 17378.5 Marine Monitoring Specifications Part 5.Sediment Analysis
HJ 494 Water Quality Sampling Technical Guide
HJ 1257 Chemical Substances Environmental Management Chemical Substances Testing Terminology
3 Terms and Definitions
For the purposes of this document, the terms and definitions defined in HJ 1257 and the following apply.
3.1
formulated sediment
A mixture of various materials used to simulate the composition of surface sediments in natural water bodies.
3.2
Spiked sediment
Sediment to which the test substance was added.
3.3
overlying water
The water that covers the sediment in the test container.
3.4
interstitial water or pore water
Water that occupies space within sediment or soil particles.
3.5
Median lethal concentration; LC50
The concentration of the test substance that causes half of the test organisms to die.
3.6
Median effect concentration; EC50
The concentration of a test substance that causes a certain biological effect in half of the test organisms.
3.7
burrowing rate
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