BS EN 13650:2001 - Soil improvers and growing media. Extraction of aqua regia soluble elements
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BS EN 13650:2001

Soil improvers and growing media. Extraction of aqua regia soluble elements

Status : Current, Under review   Published : November 2001



This European Standard specifies a method for the routine extraction of aqua regia soluble elements (as listed in annex B) from soil improvers or growing media. Materials containing more than about 28 % (m/m) organic matter will require treatment with additional nitric acid. With high solute concentrations in extract solutions, spectral interference's and background enhancement should be expected. The method is not applicable to liming materials and preformed materials such as mineral wool slabs and foam slabs. NOTE 1 Aqua regia will not totally dissolve most soil improvers or growing media, and the efficiency of extraction for particular elements differs from element to element. Such efficiency might also differ for the same element in different matrices. Elements extractable in aqua regia cannot therefore, be described as "Totals"; conversely they cannot be regarded as the "bio-available" fraction, as the extraction procedure is too vigorous to represent any biological process. NOTE 2 The requirements of the standard may differ from the national legal requirements for the declaration of the products concerned.

Standard NumberBS EN 13650:2001
TitleSoil improvers and growing media. Extraction of aqua regia soluble elements
StatusCurrent, Under review
Publication Date09 November 2001
Confirm Date03 October 2017
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
International RelationshipsEN 13650:2001
Draft Superseded By99/703432 DC
DescriptorsNitrogen inorganic compounds, Soils, Aqua regia, Growing media, Extraction methods of analysis, Fertilizers, Chemical analysis and testing, Soil improvement, Soil science
Title in FrenchAmendements du sol et supports de culture. Extraction d'elements solubles dans l'eau regale
Title in GermanBodenverbesserungsmittel und Kultursubstrate. Extraktion von in Koenigswasser loeslichen Elementen
ISBN0 580 38269 9
File Size277 KB

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