ISO 18400-301:2023 土壤质量 取样 第301部分：现场调查中挥发性有机化合物的取样和现场半定量测定

标准编号：ISO 18400-301:2023

中文名称：土壤质量 取样 第301部分：现场调查中挥发性有机化合物的取样和现场半定量测定

英文名称：Soil quality — Sampling — Part 301: Sampling and on site semi-quantitative determinations of volatile organic compounds in field investigations

发布日期：2023-09

标准范围

本文件对现有ISO中未明确涵盖的挥发性有机化合物（VOCs）野外调查中的土壤采样和半定量测量提供了具体要求和建议？18400系列。此外，它还提供了有关准备步骤的信息（选择采样策略、定义采样计划）；描述取样技术（钻井技术、取样装置和程序）和现场测量；并就挥发性有机化合物的保存、包装、运输和交付给实验室提供建议（见图2中描述的土壤取样过程）。本文件可适用的VOCs包括:—？苯、甲苯、乙苯、萘等挥发性芳香烃；—？脂肪族醚如甲基叔。-丁基醚(MTBE)、乙基叔丁基醚(ETBE)和叔戊基甲基醚(TAME)；—？挥发性卤代烃如四氯乙烯和三氯乙烯。该文件不涵盖挥发性非有机化合物。然而，附件中提供了一些关于这些的信息？D.本文件对测定VOCs的钻孔和取样技术的选择以及如何使用提供了要求和指导。它阐明了钻孔和取样技术的适用性和局限性，同时考虑到土壤中可能发生的物理、化学或生物反应。本文件给出了使用仪器测量技术测定空气中挥发性有机化合物浓度的要求和建议，首先与工人安全有关，然后与半-土壤取样过程中挥发物的定量测量。以下受试者不在本文件范围内:—？由现场分析实验室直接定量测量挥发性化合物；—？土壤气体质量的调查和评估（这些由ISO 18400 204处理）；—？安全风险评估；和—？分析程序。

This document provides specific requirements and recommendations on soil sampling and semi-quantitative measurements in field investigations for volatile organic compounds (VOCs) that are not explicitly covered in the existing ISO 18400 series. In addition, it provides information on the preparation steps (choosing a sampling strategy, defining a sampling plan); describes sampling techniques (drilling techniques, sampling devices and procedures) and field measurements; and gives advice on conservation, packaging, transport and delivery to the laboratory in the context of VOCs (see soil sampling process described in Figure 2).

VOCs to which this document can be applied include:

—     volatile aromatic hydrocarbons such as benzene, toluene, ethylbenzene, naphthalene;

—     aliphatic ethers such as methyl tert.-butyl ether(MTBE), ethyl tert.-butyl ether (ETBE) and tert.-amyl methyl ether (TAME);

—     volatile halogenated hydrocarbons such as tetrachloroethene and, trichloroethene.

The document does not cover the volatile non-organic compounds. However, some information about these is provided in Annex D.

This document provides requirements and guidance on the selection of drilling and sampling techniques for determining VOCs and how to use them. It clarifies the applicability and limits of the drilling and sampling techniques, taking into account the physical, chemical or biological reactions that can occur in soil.

This document gives requirements and recommendations on the use of instrumental measurement techniques for determination of VOC concentrations in air, firstly in relation to worker safety, and subsequently for semi-quantitative measurements of volatiles during soil sampling.

The following subjects are outside the scope of this document:

—     direct quantitative measurement of volatile compounds by field analysis laboratories;

—     investigations and evaluation of soil gas quality (these are dealt with ISO 18400 204);

—     safety risk assessment; and

—     analytical procedures.

标准预览图