Active standard | Published: 29/10/2020

ISO 19747:2020

Fertilizers and soil conditioners — Determination of monosilicic acid concentrations in nonliquid fertilizer materials
(Détermination des concentrations en silicium soluble dans les matieres fertilisantes non liquides)

Available languages: English

Available design: electronic design (pdf), Print design

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Detail information

Designation: ISO 19747:2020

Publication date: 29/10/2020

Pages: 10

Country: International technical standard

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Anotation

Description / Abstract: This document establishes a method for the determination of monosilicic acid concentrations in nonliquid fertilizer materials. Monosilicic acid is reported as silicon (Si). This extraction method is applicable to the detection of monosilicic acid in nonliquid fertilizer products, blended products, and beneficial substances at silicon (Si) concentrations of 2 to 84 g/kg, with a limit of detection (LOD) of 0,6 g/kg Si, and a limit of quantification (LOQ) of 2 g/kg correlating well with plant uptake. This method is not applicable to liquid silicon fertilizer sources due to an expected low bias of Si recovery and low correlation with plant uptake.

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