标准编号：ISO 19747:2020
中文名称：肥料和土壤调节剂 非液体肥料材料中单硅酸浓度的测定
英文名称：Fertilizers and soil conditioners — Determination of monosilicic acid concentrations in nonliquid fertilizer materials
发布日期：2020-10
标准范围
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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