TABLE FOR CONVERTING WEIGHTS INTO PERCENTAGES 3 
The solution of the following problem will illustrate the use of 
the table: 
Problem.—A sample weighing 240 grams contains 8 grams of damaged corn. What 
is the percentage of damaged corn contained in the sample? 
Referring to Table I (p. 6), follow down the first column to the 
figure 8.0 (the weight, of the separation of damaged corn in grams), 
The figure opposite Gn the second column, with heading 240) is 
found to be 3.3, which is the correct percentage expressed to the 
nearest tenth of 1 per cent. 
\ 
DUuUCIS WAICA ee 
if > SI0u7 1r7Fo ‘ 
nae oe Wider ca 
: NSSe) Soaces which 4 
aa i Ne oper7 (FO NY 
outer furre! : 
Ducks corr7ecle”d y 
2elow fase of Corre pp 
wes 
>< 
Fig. 2.—Cross section of the sampling device at the base of the cone. 
The use of the table will save time in converting the separations 
into terms of percentages of the whole sample analyzed, and its care- 
ful use will prevent errors which often occur in the mathematical 
calculations involved when the table is not used. 
In this connection it is highly essential that extreme care should be 
taken to preserve the accuracy of the sample when reducing the 
original 24 or more pints taken from the bulk grain to the smaller 
sample of approximately 250 grams for analytical purposes. Ex- 
