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ÖNORM EN 12946:2000-04

Действует
Liming materials - Determination of calcium content and magnesium content - Complexometric method
This European Standard specifies a complexometric method for the determination of the calcium content and the magnesium content of liming materials.
It is not applicable to products with a mass fraction less than 2 % (m/m) magnesium or those with a mass fraction more than 1 % P2O5 and is not applicable to silicate liming materials.
Diese Europäische Norm legt ein komplexometrisches Verfahren zur Bestimmung des Calcium- und des Magnesiumgehaltes von Calcium-/Magnesium-Bodenverbesserungsmitteln fest.
ICS
65.080 Fertilizers. Including soil conditioners and culture medium / Удобрения. Включая структурообразователи почвы и питательную среду