本文件描述了一种通过测定生长在这些土壤中的植物叶片的脂肪酸组成来比较土壤质量的方法。 这种方法无法确定ω-3指数的最佳值，因此不能用于确定特定区域（视为均质）土壤的内在质量。该方法只能用于比较不同地区的土壤质量。 该方法适用于:-污染场地的土壤； -改良土壤修复后的土壤含有废物（如泥浆、粪肥、污泥或堆肥）的土壤。 或者，可以通过测定在受控条件下（即植物电子室）在这些土壤中生长的莴苣幼苗的ω-3指数，并将这些值与从对照土壤中获得的值进行比较，来评估土壤质量（见附录B）。交叉引用:ISO 29200:2013ISO 11269-2:2012ISO 11269-1:2012ISO 17126:2005ISO 22030:2005AFNOR X 31-233:2012购买本文件时提供的所有当前修订版均包含在购买本文件中。

This document describes a method to compare the quality of soils by determining the fatty acid composition of the leaves of plant species grown in these soils. This method does not make it possible to determine an optimal value of the Omega-3 index and, therefore, cannot be used to determine the intrinsic quality of a soil from a specific area (regarded as homogeneous). The method can only be used to compare the quality of soils between various areas. This method is applicable to:— soils from contaminated sites;— amended soils;— soils after remediation;— soil with waste products (e.g. slurry, manure, sludge or composts). Alternatively, the quality of soils can be assessed by determining the Omega-3 index of Lactuca sativa seedlings grown in these soils under controlled conditions (i.e. phytotronic chamber) and by comparing these values to those obtained from control soils (see Annex B).Cross References:ISO 29200:2013ISO 11269-2:2012ISO 11269-1:2012ISO 17126:2005ISO 22030:2005AFNOR X 31-233:2012All current amendments available at time of purchase are included with the purchase of this document.