标准编号：ISO 17924:2018
中文名称：土质 人类因摄入土壤和土壤材料而暴露的评估 土壤中金属的人类生物可及性/生物利用度的评估程序
英文名称：Soil quality — Assessment of human exposure from ingestion of soil and soil material — Procedure for the estimation of the human bioaccessibility/bioavailability of metals in soil
发布日期：2018-10
标准范围
This document deals with the assessment of human exposure from ingestion of soil and soil materials. It
specifies a physiologically based test procedure for the estimation of the human bioaccessibility of metals
from contaminated soil in connection with the evaluation of the exposure related to human oral uptake.
The method is a sequential extraction using synthetic gastrointestinal fluids and can be used to
estimate oral bioaccessibility. Soils or other geological materials, in sieved form, are extracted in an
environment that simulates the basic physicochemical conditions of the human gastrointestinal tract.
This document describes a method to simulate the release of metals from soil and soil materials after
passage through three compartments of the human gastrointestinal tract (mouth, stomach and small
intestine). It produces extracts that are representative of the concentration of potentially harmful
elements in the human gastrointestinal tract for subsequent chemical characterization.
NOTE 1 Bioaccessibility can be used to approximate oral bioavailability.
NOTE 2 The test has been validated for arsenic, cadmium and lead in an interlaboratory trial. The method has
been in vivo validated to assess the oral bioavailability of arsenic, cadmium and lead.
立即下载标准文件