Page 122 - Feed Lab

Laboratory Water Suguna Management System Ver 1.0 / SOP / FQL / P2 - 33 Page 3 of 3

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CALCULATION
OD sample x mg of Std. Urea x 100 x 100
% Urea = ------------------------------------------------------------------------
OD std. x aliquot x 1000 x sample weight, g

OD std = OD of Standard which is nearer to OD sample

REFERENCE
AOAC official method 967.07

AOAC 16th edition, JAOAC 50, 56 (1967)

Prepared by : Approved by :
110 Director - Technical