ISO 22036:2008 PDF

Scope: This International Standard describes the determination of trace elements in digests or extraction solutions from soil by inductively coupled plasma - atomic emission spectrometry (ICP-AES) for 34 elements (see Table 1). This multi-element determination method is applicable to soil extracts obtained with aqua regia in accordance with ISO 11466, with DTPA in accordance with ISO 14870 or other weak extractants, or soil extracts for the determination of total element contents using the acid digestion method of ISO 14869-1 or the fusion method of ISO 14869-2. The choice of calibration method depends on the extractant and can be adapted to the extractant concentration.

ISO 22036:2008 Referenced Document

ISO 11465 Soil quality; determination of dry matter and water content on a mass basis; gravimetric method; technical corrigendum 1
ISO 11466 Soil quality - Extraction of trace elements soluble in aqua regia
ISO 14869-1 Soil quality - Dissolution for the determination of total element content - Part 1: Dissolution with hydrofluoric and perchloric acids
ISO 14869-2 Soil quality - Dissolution for the determination of total element content - Part 2: Dissolution by alkaline fusion
ISO 14870 Soil quality - Extraction of trace elements by buffered DTPA solution
ISO 3696 Water for analytical laboratory use; Specification and test methods
ISO 5725-1 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions*， 2023-07-01 Update
ISO 5725-2 Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method*， 2019-12-06 Update
ISO GUIDE 32 Calibration in analytical chemistry and use of certified reference materials

2024 ISO 22036:2024 Environmental solid matrices — Determination of elements using inductively coupled plasma optical emission spectrometry (ICP-OES)
2023 ISO 22036:2023 Environmental solid matrices
2008 ISO 22036:2008 Soil quality - Determination of trace elements in extracts of soil by inductively coupled plasma - atomic emission spectrometry (ICP - AES)