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    • Fertilizers
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    ISO 14820-3:2020

    Fertilizers and liming materials — Sampling and sample preparation — Part 3: Sampling of static heaps

    International Organization for Standardization

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    ISO 23381:2020

    Determination of salt out (crystallization) temperature of liquid fertilizers

    International Organization for Standardization

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    ISO 20978:2020

    Liming material — Determination of neutralizing value — Titrimetric methods

    International Organization for Standardization

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    ISO 15958:2019

    Fertilizers — Extraction of water soluble phosphorus

    International Organization for Standardization

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    ISO 20977:2018

    Liming materials -- Determination of size distribution by dry and wet sieving

    International Organization for Standardization

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    ISO 22146:2018

    Carbonate liming materials — Determination of reactivity — Automatic titration method with citric acid

    International Organization for Standardization

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    ISO 19822:2018

    Fertilizers and soil conditioners -- Determination of humic and hydrophobic fulvic acids concentrations in fertilizer materials

    International Organization for Standardization

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    ISO 7409 : 2018

    FERTILIZERS - MARKING - PRESENTATION AND DECLARATIONS

    International Organization for Standardization

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    ISO 21263 : 2017

    SLOW-RELEASE FERTILIZERS - DETERMINATION OF THE RELEASE OF THE NUTRIENTS - METHOD FOR COATED FERTILIZERS

    International Organization for Standardization

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    ISO 20702 : 2017

    FERTILIZERS AND SOIL CONDITIONERS - DETERMINATION OF MICROAMOUNTS OF INORGANIC ANIONS IN FERTILIZERS BY ION CHROMATOGRAPHY

    International Organization for Standardization

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