NF EN ISO 25177

ISO 25177:2008 is a guide for describing the soil and its environmental context at a given site. Sites can be natural, near-natural, urban or industrial. It is important to realize that a number of soil samples can be taken at a site to support the soil description. The information provided by the descriptions in ISO 25177:2008 provides the context for the presentation of results from analyses undertaken on soil samples.

This document provides guidance on the description of soil in the field and its environmental context. It is applicable to natural, near-natural, urban and industrial sites. The soil observations and measurements can be made on a project site level, on a plot level, on layer or horizon level and on specific soil constituents. It also provides guidance on how to describe layers of anthropogenic (artificial) material or layers that were not modified by pedogenic processes in the strict sense and how to describe coarse material of natural or artificial origin. This document can be used in combination with other publications that provide guidance or requirements regarding specific aspects of soil observations and measurements. NOTE 1 It might not be possible or necessary to record data under all the headings listed in Clauses 4 to 11. NOTE 2 Overall guidance for presentation of information from soil surveys is given in ISO 15903. NOTE 3 The guidance provided assumes that sampling will be done in accordance with ISO 18400.