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Division 7 The requirements in this Annex are expressed in oxidised form for certain nutrients. Where compliance is assessed based on the presence of the nutrient in question in its elemental form, the following conversion factors shall be used:

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Original text. Later amendments are not shown.

phosphorus (P)

  • phosphorus pentoxide (P2O5) × 0,436;

    • potassium (K)

  • potassium oxide (K2O) × 0,830;

    • calcium (Ca)

  • calcium oxide (CaO) × 0,715;

    • magnesium (Mg)

  • magnesium oxide (MgO) × 0,603;

    • sodium (Na)

  • sodium oxide (Na2O) × 0,742;

    • sulphur (S)

  • sulphur trioxide (SO3) × 0,400.