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Division 8.1 Calculation and formula:

United Kingdom

Original text. Later amendments are not shown.

Calculate the nitrogen content (WN), expressed in grams of nitrogen per 100 g of product by:

W N = 1,40 V - V 0 c m

where:

WN

  • the nitrogen content.

    • V

  • the volume in millilitres of the standard volumetric solution of acid used in the determination.

    • Vo

  • the volume in millilitres of the standard volumetric solution of acid used in the blank test,

    • c

  • the concentration, expressed as moles per litre of the acid standard volumetric solution (4.7.).

    • m

  • the mass in grams of the test portion.

    • Round off the result to the nearest 0,001 g per 100 g.