AOAC ERP Fertilizers - March 2019

aoac

3/14/2019

AOAC EXPERT REVIEW PANEL FOR MICROBIOLOGY FOR FOODS AND ENVIRONMENTAL SURFACES

ISO  19746 – Determination of Urea content in Urea‐based fertilizers by HPLC ISO 19822 – Determination of Humic & Hydrophobilc Fulvic acids in Fertilizers ISO 20702 – Determination of Micro amounts of Anions in fertilizers by Ion  Chromatography ISO 21263 – Determination of Release of Nutrients for Coated Fertilizers ISO 22146 – Determination of Reactivity of Liming materials

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AOAC EXPERT REVIEW PANEL FOR MICROBIOLOGY FOR FOODS AND ENVIRONMENTAL SURFACES

ISO / DIS 20917 – Determination of Available Phosphorous and Soluble  Potassium Extracted with NAC and quantified by ICP‐OES  (Similar to OMA  2015.18 Bartos Study Director) ISO / DIS 20974 – Determination of Secondary Nutrients and Trace Metals in  Fertilizers by mixed acid digestion and quantitation by ICP‐OES  (Similar to – OMA 2017.02 Webb Study Director) ISO / DIS 20978 – Liming materials – Determination of Neutralizing value – Titrimetric methods ISO / DIS 22018 – Determination of Available Phosphorous in inorganic fertilizers   ‐ EDTA extraction method

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