Résumé
The method consists in preparing of a test solution as specified in ISO 5317, precipitating of potassium ions by sodium tetraphenylborate in a weakly alkaline medium in the presence of disodium ethylenediaminetetraacetate dihydrate (EDTA, disodium salt) and formaldehyde, followed by filtrating of the precipitate, drying and weighing.
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État actuel: AnnuléeDate de publication: 1983-12
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Edition: 1Nombre de pages: 3
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- ICS :
- 65.080 Engrais
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