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ISO
ISO 6598:1985

ISO 6598:1985

Fertilizers — Determination of phosphorus content — Quinoline phosphomolybdate gravimetric method

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General Information

Status : Active

Standard Type : Main

Document No : ISO 6598:1985

Document Year : 1985

Pages : 3

Edition : 1

Section Volume : Fertilizers and soil conditioners (ISO/TC 134.)

ICS : Fertilizers (65.080)

The method consists in precipitating, after hydrolysis if necessary, of orthophosphate ions in the form of quinoline phosphomolybdate, in an acid medium and in the presence of acetone, at approximately 75 °C, followed by filtrating, washing drying and weighing of the precipitate obtained.