International Organization for Standardization

Soil quality - Sampling - Part 204: Guidance on sampling of soil gas - First Edition
 N 18400-204

Annotation

This document contains guidance on soil gas sampling using

— active sampling (adsorbents, filters, air containers), and

— passive sampling

applied at permanent or temporary monitoring wells or other installations in soils or underneath buildings (sub-slab).

It provides guidance on:

— development of a sampling plan;

— construction of monitoring installations;

— transport, packaging and storage soil gas samples;

— quality assurance.

This document also gives basic information about

— soil gas dynamics, and

— identification of soil gas sources

relevant to permanent or temporary boreholes in soils or underneath buildings (sub slab).

The compounds covered by this document are:

— volatile organic compounds (VOCs);

— inorganic volatile compounds (e.g. mercury, HCN);

— permanent gases (i.e. CO2, N2, O2, CH4).

This document does not give guidance on:

— risk evaluation and characterization;