LESSON 4
COMPLETION OF SHELL EGG INSPECTION AND THE RECORDING OF RESULTS
ON THE DD FORM 1237
Section I. ADDITIONAL INSPECTION PROCEDURES
4-1.
SELECTING A SAMPLING PATTERN
The sample size for classifying consists of 100 eggs.
a. For consumer grade shell eggs, eight full cartons and the middle four eggs
from a ninthcarton are to be selected from each case in the sample. These cartons are
selected from the cartons selected for determining net weight according to a
predetermined sampling plan. For an example of a predetermined sampling plan using
the 15 cartons selected from each case for net weight, see figure 4-1.
First Sample (15 cartons
Second Sample (15 cartons
from case number one of lot
from case number two of
sample)
lot sample)
XX
X
XX
X
X
X
X
X
X
X (X)
X
X
X
X
(X)
Third Sample (15 cartons
Fourth Sample (15 cartons
from case number three of lot sample)
from case numver four of lot sample)
(X)
X
X
X
X
(X)
XX
X
X
XX
X
X
X
X
X
X
Fifth Sample (15 cartons from case number five
of lot sample--same pattern as first.)
XX
X
X = full carton selected
XX
X
X
(X) = 4 eggs from carton are selected
X (X)
Figure 4-1. Example of a predetermined sampling plan for consumer grade eggs.
MD0713
4-2