Povučen
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.
POVUČEN
ISO 5318:1983
95.99
Povučen
30. 7. 2004.
Veštačka đubriva - Određivanje sadržaja kalijuma - Gravimetrijska metoda
95.99 Povučen