ISO 14869-3:2017
Current
The latest, up-to-date edition.
Soil quality — Dissolution for the determination of total element content — Part 3: Dissolution with hydrofluoric, hydrochloric and nitric acids using pressurised microwave technique
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16-02-2017
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ISO 14869-3:2017 specifies a method for microwave-assisted dissolution of soil samples for determination of total element contents of
Al, As, Ba, Ca, Cd, Co, Cr, Cs, Cu, Fe, Hg, K, Li, Mg, Mn, Na, Ni, P, Pb, S, Se, Sb, Sr, Tl, V, Zn
using an acid mixture of nitric acid (HNO3), hydrofluoric acid (HF) and hydrochloric acid (HCl). This method is applicable to all types of soil and soil material.
The main field of application is geological and pedological survey.
The acid mixture is suitable for total dissolution of element contents in soil (major, minor and trace), but some refractory compounds such as SiO2, TiO2, spinel, Al2O3 or other compounds may remain as a residue. In such a case, the use of alkaline fusion, following ISO 14869‑2, is recommended to determine the true total element content.
NOTE 1 In environmental studies, usually, aqua regia extraction is applied using ISO 12914 or ISO 11466.
Solutions produced by the microwave method are suitable for analysis, for example, by using atomic absorption spectrometry (FAAS, HGAAS, CVAAS, GFAAS), inductively coupled plasma optical emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS).
NOTE 2 Due to the presence of chloride in the digestion solution, limitations for the application of some analytical techniques can occur.
| Committee |
ISO/TC 190/SC 3
|
| DevelopmentNote |
Supersedes ISO/DIS 14869-3. (02/2017)
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| BS ISO 14869-3:2017 | Identical |
| NF ISO 14869-3 : 2017 | Identical |
| ISO 11074:2015 | Soil quality — Vocabulary |
| ISO 11464:2006 | Soil quality Pretreatment of samples for physico-chemical analysis |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| ISO 10694:1995 | Soil quality — Determination of organic and total carbon after dry combustion (elementary analysis) |
| EN 13656:2002 | Characterization of waste - Microwave assisted digestion with hydrofluoric (HF), nitric (HNO3) and hydrochloric (HCl) acid mixture for subsequent determination of elements |
| ISO 18512:2007 | Soil quality Guidance on long and short term storage of soil samples |
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