ISO 6598:1985

Fertilizers — Determination of phosphorus content — Quinoline phosphomolybdate gravimetric method


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.




Status Current
Edition 1985
No. of Pages 3
ICS Classification 65.080 Fertilizers
Committee ISO/TC 134
Available for Purchase For sale in Singapore only
Adoption ISO