GB/T 44706-2024化學(xué)品沉積物-水系統(tǒng)中河蜆毒性試驗

ICS

13.300

CCS

A80

中華人民共和國國家標(biāo)準(zhǔn)

GB/T44706—2024

化學(xué)品沉積物?水系統(tǒng)中河蜆毒性

試驗

Chemicals—Sediment?watercorbiculaflumineatoxicitytest

2024-10-26發(fā)布2025-05-01實施

國家市場監(jiān)督管理總局發(fā)布

國家標(biāo)準(zhǔn)化管理委員會

GB/T44706—2024

目次

前言

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范圍

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規(guī)范性引用文件

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術(shù)語和定義

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試驗原理

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受試物信息

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試驗系統(tǒng)

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儀器設(shè)備

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試驗程序

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質(zhì)量保證與質(zhì)量控制

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數(shù)據(jù)與報告

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附錄A（資料性）

河蜆生物學(xué)特性

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附錄B（規(guī)范性）

試驗用水的化學(xué)特征

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附錄C（資料性）

配制沉積物的組成

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參考文獻

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Ⅰ

GB/T44706—2024

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機構(gòu)不承擔(dān)識別專利的責(zé)任。

本文件由全國危險化學(xué)品管理標(biāo)準(zhǔn)化技術(shù)委員會（SAC/TC251）提出并歸口。

本文件起草單位：中國環(huán)境科學(xué)研究院、南開大學(xué)、中檢科健（天津）檢驗檢測有限責(zé)任公司、

中國檢驗檢疫科學(xué)研究院、南昌大學(xué)、中國海洋大學(xué)、南京大學(xué)。

本文件主要起草人：劉征濤、李霽、祝凌燕、張彥峰、閆振廣、王曉南、陳會明、周麗麗、葛剛、

李正炎、王尚洪、李梅、王遵堯、孫成、鄭欣、張明明、武荻。

Ⅲ

GB/T44706—2024

化學(xué)品沉積物?水系統(tǒng)中河蜆毒性

試驗

1范圍

本文件規(guī)定了化學(xué)品沉積物?水系統(tǒng)中河蜆毒性試驗的試驗原理、受試物信息、試驗系統(tǒng)、儀器設(shè)

備、試驗程序、質(zhì)量保證與質(zhì)量控制、數(shù)據(jù)與報告。

本文件適用于淡水水體沉積物中化學(xué)品對河蜆的毒性效應(yīng)測試。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用

于本文件。

GB17378.5海洋監(jiān)測規(guī)范第5部分：沉積物分析

HJ494水質(zhì)采樣技術(shù)指導(dǎo)

HJ1257化學(xué)物質(zhì)環(huán)境管理化學(xué)物質(zhì)測試術(shù)語

3術(shù)語和定義

HJ1257界定的以及下列術(shù)語和定義適用于本文件。

3.1

人工沉積物formulatedsediment

由多種材料組成的用于模擬天然水體表層沉積物成分的混合物。

3.2

加標(biāo)沉積物spikedsediment

添加了受試物的沉積物。

3.3

上覆水overlyingwater

在試驗容器中覆于沉積物上層的水。

3.4

空隙水或孔隙水interstitialwaterorporewater

占據(jù)沉積物或土壤顆粒物空間的水。

3.5

半數(shù)致死濃度medianlethalconcentration；LC50

引起受試生物半數(shù)死亡的受試物濃度。

3.6

半數(shù)效應(yīng)濃度medianeffectconce