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Norm
ÖNORM EN 13466-1
Issue date: 2002 01 01
Fertilizers - Determination of water content (Karl-Fischer-methods) - Part 1: Methanol as extracting medium
This European Standard specifies a Karl Fischer titrimetric method for the determination of the water content of
fertilizers based on the use of methanol as extracting m...
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Valid
Publisher:
Austrian Standards International
Format:
Digital | 11 Pages
Language:
German
| English
| Download GER/ENG
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This European Standard specifies a Karl Fischer titrimetric method for the determination of the water content of
fertilizers based on the use of methanol as extracting medium.
The method is applicable to all solid mineral fertilizers. The result (KFM water) includes "free" water and extracted
water of crystallization from the following components of fertilizers: calcium nitrate tetrahydrate (Ca(NO3)2·4H2O);
calcium hydrogen phosphate dihydrate (CaHPO4·2H2O); calcium sulfate dihydrate (gypsum, CaSO4·2H2O), calcium
sulfate hemihydrate (CaSO4·0,5H2O); magnesium sulfate heptahydrate (MgSO4·7H2O) ; potassium chloride
magnesium sulfate water (1/1/2,75, Kainite, KCl·MgSO4·2,75H2O); potassium magnesium sulfate hexahydrate
(Schoenite, K2SO4·MgSO4·6H2O); potassium magnesium sulfate tetrahydrate (Leonite, K2SO4·MgSO4·4H2O);
potassium sulfate calcium sulfate monohydrate (Syngenite, K2SO4·CaSO4·H2O); potassium chloride magnesium
chloride hexahydrate (Carnallite, KCl·MgCl2·6H2O); magnesium nitrate hexahydrate (Mg(NO3)2·6H2O).
Metal oxides and hydroxides soluble in methanol and pyridine will have an effect which can be corrected for, if their
content is known.
ÖNORM EN 13466-1
2002 01 01
Fertilizers - Determination of water content (Karl-Fischer-methods) - Part 1: Methanol as extracting...
Norm
↖
Norm
ÖNORM EN 1482-1
Issue date :
2007 04 01
Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling
Norm
ÖNORM EN 1482-2
Issue date :
2007 04 01
Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation