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Fertilizers. Chemical analysis. Determination of nitrogen. Determination of ammoniacal nitrogen, titrimetric method after distillation.
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Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation).
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Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide (titrimetric method).
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Fertilizers. Chemical analysis. Determination of phosphorus. Extraction of water-soluble phosphates.
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Fertilizers. Chemical analysis. Determination of phosphorus.. Method for determination of phosphorus content (quinoline molybdophosphate gravimetric method).
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Fertilizers. Chemical analysis. Determination of potassium. Preparation of the test solution for determination of water-soluble potassium content.
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Fertilizers. Chemical analysis. Determination of potassium. Preparation of the test solution for determination of acid-soluble potassium content.
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Fertilizers. Chemical analysis. Method for determination of mineral-acid-soluble sulfate content of solid fertilizers.
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Meat and meat products. Detection of condensed phosphates.
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Animal and vegetable fats and oils. Sampling.
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