GB/T 44706-2024 化学品 沉积物-水系统中河蚬毒性试验

ICS

13.300

CCS

A80

中华人民共和国国家标准

GB/T44706—2024

化学品沉积物﹘水系统中河蚬毒性

试验

Chemicals—Sediment﹘watercorbiculaflumineatoxicitytest

2024-10-26发布2025-05-01实施

国家市场监督管理总局发布

国家标准化管理委员会

GB/T44706—2024

目次

前言

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1

范围

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规范性引用文件

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术语和定义

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试验原理

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受试物信息

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试验系统

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仪器设备

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试验程序

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质量保证与质量控制

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数据与报告

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附录A（资料性）

河蚬生物学特性

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附录B（规范性）

试验用水的化学特征

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附录C（资料性）

配制沉积物的组成

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参考文献

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GB/T44706—2024

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由全国危险化学品管理标准化技术委员会（SAC/TC251）提出并归口。

本文件起草单位：中国环境科学研究院、南开大学、中检科健（天津）检验检测有限责任公司、

中国检验检疫科学研究院、南昌大学、中国海洋大学、南京大学。

本文件主要起草人：刘征涛、李霁、祝凌燕、张彦峰、闫振广、王晓南、陈会明、周丽丽、葛刚、

李正炎、王尚洪、李梅、王遵尧、孙成、郑欣、张明明、武荻。

Ⅲ

GB/T44706—2024

化学品沉积物﹘水系统中河蚬毒性

试验

1范围

本文件规定了化学品沉积物﹘水系统中河蚬毒性试验的试验原理、受试物信息、试验系统、仪器设

备、试验程序、质量保证与质量控制、数据与报告。

本文件适用于淡水水体沉积物中化学品对河蚬的毒性效应测试。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用

于本文件。

GB17378.5海洋监测规范第5部分：沉积物分析

HJ494水质采样技术指导

HJ1257化学物质环境管理化学物质测试术语

3术语和定义

HJ1257界定的以及下列术语和定义适用于本文件。

3.1

人工沉积物formulatedsediment

由多种材料组成的用于模拟天然水体表层沉积物成分的混合物。

3.2

加标沉积物spikedsediment

添加了受试物的沉积物。

3.3

上覆水overlyingwater

在试验容器中覆于沉积物上层的水。

3.4

空隙水或孔隙水interstitialwaterorporewater

占据沉积物或土壤颗粒物空间的水。

3.5

半数致死浓度medianlethalconcentration；LC50

引起受试生物半数死亡的受试物浓度。

3.6

半数效应浓度medianeffectconcentration；EC50

引起受试生物半数出现某种生物效应的受试物浓度。

3.7

下潜率burrowingrate

1