DIN ISO 19730-2009 Soil quality - Extraction of trace elements from soil using ammonium nitrate solution (ISO 19730 2008) English version of DIN ISO 19730 2009-07《土壤质量 从土壤中使用硝酸铵溶液提.pdf
《DIN ISO 19730-2009 Soil quality - Extraction of trace elements from soil using ammonium nitrate solution (ISO 19730 2008) English version of DIN ISO 19730 2009-07《土壤质量 从土壤中使用硝酸铵溶液提.pdf》由会员分享,可在线阅读,更多相关《DIN ISO 19730-2009 Soil quality - Extraction of trace elements from soil using ammonium nitrate solution (ISO 19730 2008) English version of DIN ISO 19730 2009-07《土壤质量 从土壤中使用硝酸铵溶液提.pdf(16页珍藏版)》请在麦多课文档分享上搜索。
1、July 2009DEUTSCHE NORM English price group 10No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.080.10!$XC$“1533201www
2、.din.deDDIN ISO 19730Soil quality Extraction of trace elements from soil using ammonium nitrate solution(ISO 19730:2008)English version of DIN ISO 19730:2009-07Bodenbeschaffenheit Extraktion von Spurenelementen aus Bden mit Ammoniumnitratlsung (ISO 19730:2008)Englische Fassung DIN ISO 19730:2009-07S
3、upersedesDIN 19730:1997-06www.beuth.deDocument comprises pages16Contents Page National foreword 3 Introduction 5 1 Scope7 2 Normative references7 3 Principle7 4 Reagents.8 5 Apparatus.8 6 Procedure.8 6.1 Sample preparation .8 6.2 Determining water content .9 6.3 Extraction .9 6.4 Phase separation.9
4、6.5 Stabilization of extract 9 6.6 Blank test9 7 Calculation .9 8 Expression of results10 9 Test report10 Annex A (informative) Information on method of determining selected elements and treatment of particular types of soil 11 Annex B (informative) Precision12 Annex C (informative) Notes on homogen
5、ization, initial sample mass and extraction.14 Bibliography15 DIN ISO 19730:2009-07 2National foreword This standard has been prepared by Technical Committee ISO/TC 190 “Soil quality”, Subcommittee SC 3 “Chemical methods and soil characteristics”. The responsible German body involved in its preparat
6、ion was the Normenausschuss Wasserwesen (Water Practice Standards Committee), Technical Committee NA 119-01-02-02 UA Chemische und physikalische Verfahren. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held resp
7、onsible for identifying any or all such patent rights. Expert assistance and specialized laboratories will be required to perform the sampling procedures described in this standard. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 3696 D
8、IN ISO 3696 ISO 5725-1 DIN ISO 5725-1 ISO 5725-2 DIN ISO 5725-2 ISO 5725-3 DIN ISO 5725-3 ISO 5725-4 DIN ISO 5725-4 ISO 5725-5 DIN ISO 5725-5 ISO 5725-6 DIN ISO 5725-6 ISO 11047 DIN ISO 11047 ISO 11464 DIN ISO 11464 ISO 11465 DIN ISO 11465 ISO 17294-2 DIN EN ISO 17924-2 ISO 20280 E DIN ISO 20280 ISO
9、 22036 DIN ISO 22036 Amendments This standard differs from DIN 19730:1997-06 as follows: a) The title of the standard has been modified. b) The standard has been revised in form and substance. c) Annex A (informative) has been extended to include standardized methods for the determination of trace e
10、lements in ammonium nitrate extracts. Previous editions DIN V 19730: 1993-02 DIN 19730: 1997-06 DIN ISO 19730:2009-07 3National Annex NA (informative) Bibliography DIN ISO 3696, Water for analytical laboratory use Specification and test methods DIN ISO 5725-1, Accuracy (trueness and precision) of me
11、asurement methods and results Part 1: General principles and definitions DIN 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 DIN ISO 5725-3, Accuracy (tru
12、eness and precision) of measurement methods and results Part 3: Intermediate measures of the precision of a standard measurement method DIN ISO 5725-4, Accuracy (trueness and precision) of measurement methods and results Part 4: Basic methods for the determination of the trueness of a standard measu
13、rement method DIN ISO 5725-5, Accuracy (trueness and precision) of measurement methods and results Part 5: Alternative methods for the determination of the precision of a standard measurement method DIN ISO 5725-6, Accuracy (trueness and precision) of measurement methods and results Part 6: Use in p
14、ractice of accuracy values DIN ISO 11047, Soil quality Determination of cadmium, chromium, cobalt, copper, lead, manganese, nickel and zinc in aqua regia extracts of soil Flame and electrothermal atomic absorption spectrometric methods DIN ISO 11464, Soil quality Pretreatment of samples for physico-
15、chemical analyses DIN ISO 11465, Soil quality Determination of dry matter and water content on a mass basis Gravimetric method DIN EN ISO 17294-2, Water quality Application of inductively coupled plasma mass spectrometry (ICP-MS) Part 2: Determination of 62 elements E DIN ISO 20280, Soil quality Det
16、ermination of arsenic, antinomy and selenium in aqua regia soil extracts with electrothermal or hydride-generation atomic absorption spectrometry DIN ISO 22036, Soil quality Determination of trace elements in extracts of soil by inductively coupled plasma-atomic emission spectrometry (ICP-AES) DIN I
17、SO 19730:2009-07 4Introduction 0.1 General The displacement of trace elements in soil cannot be described solely in terms of their solubility in water, since solid and dissolved compounds interact with one another in a large number of processes. Processes that proceed in one direction (e.g. weatheri
18、ng, mineralization) are accompanied by equilibrium reactions between solid and dissolved forms (e.g. adsorption/desorption, precipitation/dissolution). Factors that determine whether substances dissolve include the pH value, the redox potential, the concentration of ions in a soil solution and its c
19、omplexing agent content, all of which result in the soil solution varying with location and time. To be able to compare increases in easily soluble trace element concentrations in soil by a standardized method, soil extraction with ammonium nitrate is used, which is applicable to all those compounds
20、 of elements in a soil that may contribute to the concentration of dissolved elements under the prevailing site conditions (water-soluble compounds, exchangeably bound ions, readily soluble metal complexes). Extraction with ammonium nitrate solution fulfils the criteria to be satisfied by an extract
21、ant for routine analyses. a) It can be applied to a wide spectrum of soils and elements in a wide concentration range. b) Disposal of the spent ammonium nitrate solution is environmentally friendly. c) The determination of the elements in the solution has low susceptibility to interference. The conc
22、entrations of elements in extracts obtained with other unbuffered salt solutions (such as calcium chloride or sodium nitrate solution) often correlate well with those in ammonium nitrate extracts, but the absolute concentrations are different and, at some sites, there may be concentrations deviating
23、 substantially from average values. In addition, critical concentrations may be in the region of the limit of determination in the case of some extraction methods. In conjunction with extraction methods for determining the reserves of elements in soil (e.g. extraction with aqua regia), the proportio
24、ns by mass determined by extraction with ammonium nitrate solution can serve as a basis for site investigations and for making recommendations with regard to use and restoration of soil containing critical concentrations of elements. 0.2 Prediction of impact 0.2.1 General The concentrations determin
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