scope:

This part of ISO 18400 contains guidance on soil gas sampling using: -- active sampling (adsorbents, filters, air containers); -- passive sampling; applied at permanent or temporary monitoring wells or other installations in soils or underneath buildings (subslab). It provides guidance on: -- development of a sampling plan; -- construction of monitoring installations; -- transport, packaging and storage soil gas samples; -- quality assurance. This International Standard also gives basic information about: -- soil gas dynamics; -- identification of soil gas sources; applied at permanent or temporary boreholes in soils or underneath buildings (sub-slab).