SCHEDULE 2METHODS OF ANALYSIS
5.DETERMINATION OF TOTAL NITROGEN IN UREA
EXPRESSION OF THE RESULT8
Express the result as the percentage of nitrogen (N) contained in the fertiliser as received for analysis.
Variant (a): N% = (50−A) × 1.12
Variant (b): N% = (50−A) × 1.12
Variant (c): N% = (35-A) × 1.40
Where A = millilitres of sodium or potassium hydroxide used for the titration.