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SSH EN 13650:2002

Përmirësuesit e tokës dhe mjedisit prodhues - Ekstaktimi I elementeve të tretshëm në ujë mbretëror

Soil improvers and growing media - Extraction of aqua regia soluble elements
7 jan 2002

General information

60.60     7 jan 2002

DPS

DPS/KT 190

European Norm

65.080  

anglisht  

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Scope

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.

Life cycle

NOW

PUBLISHED
SSH EN 13650:2002
60.60 Standard published
7 jan 2002

Related project

Adopted from EN 13650:2001