CONVERSION OF WEIGHTS INTO PERCENTAGES. 3 
DIRECTIONS FOR USING THE TABLES. 
Table I shows the percentage equivalents for separations weighing 
from 0.1 to 20 grams taken from samples weighing from 25 to 65 
grams, inclusive, which covers the entire range of maximum and 
minimum limits of color, wheat of other classes, damaged kernels, 
and inseparable impurities specified in the numerical grades of the 
United States standards for wheat. 
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Fig. 2. — Cross section of the sampling device at the base of the cone. 
Table II shows percentage equivalents for separations weighing 
from 0.1 to 40 grams taken from samples weighing from 240 to 260 
grams, inclusive, which covers the entire range of maximum limits 
of corn of other colors, damage, heat damage, and foreign material 
and cracked corn specified in the numerical grades of the United 
States standards for shelled corn. 
The solution of the following problem will illustrate the use of the 
table : 
Problem. — A sample weighing 240 grams contains^ grams of damaged corn. What 
is the percentage of damaged corn contained in the sample? 
