b. For wholesale grade shell eggs, examine one-half the sample cases from the
marked end of the cases and the other half from the unmarked end of the cases (see
para 2-5a). The odd- numbered cases, that is 1, 3, 5, 7, and so forth, could be
examined on the marked end of the cases and the even-numbered cases examined on
the unmarked end. From the appropriate end, three trays (30 eggs per tray) plus ten
eggs from a fourth tray are selected using the predetermined sampling pattern shown in
figure 4-2.
Sample Case
LAYERS
Number
Compartment
1
2
3
4
5
6
1
Marked end
X
X
X
(X)
--
--
2
Unmarked end
--
--
X
X
X
(X)
3
Marked end
--
X
X
X
(X)
-
4
Unmarked end
X
X
--
--
X
(X)
5
Marked end
X
--
--
X
X
(X)
6
Unmarked end
Same as for number one.
7
Marked end
Same as for number two
8
Unmarked end
Same as for number three.
9
Marked end
Same as for number four.
10
Unmarked end
Same as for number five.
Repeat the above for sample case number in excess of 10
X = use all eggs in layer
(X) = use only the ten eggs from the two middle five-egg rows
Figure 4-2. Predetermined sampling pattern for 30-egg-tray, six-trays-per-compartment,
wholesale grade shell eggs.
MD0713
4-3