(1) Whole-case sample. You may determine the net weight of eggs packed
in uniform (one-type-construction) fiber cases by removing all eggs from at least two
cases and obtaining the average tare (case and packing materials) per case. Then
weigh each sample case and obtain the net weight by subtracting the average tare from
the gross weight. An average tare may not be used for wood cases.
Half-case sample. You will be weighing one compartment of eggs.
(a) Remove half-case sample from the container (all fillers, flats, and
eggs) (figure 2-12).
Figure 2-12. Six layers of eggs.
(b) Weigh the half-case on the scale to the nearest 1/4 pound (fig.
2-13). If a layer has one or more eggs missing from the tray, the missing eggs are not
(c) Multiply the gross weight of the sample (half-case by two) in order
to obtain the total gross weight of the cases.
(d) Determine the tare weight of the half-case. If domestic shipment,
use standard tare (3 1/2 pounds, if fillers and flats, or 2 pounds if filler-flats). If the
inspector has 20 or more sets of fillers and flats available for weighing, he may
determine a tare for the lot, rather than using the standard tare (figure 2-14).
(e) Subtract the tare weight from the gross weight to obtain the net
weight of the sample (half-case).
(f) Record the net weight on the reverse side of DD Form 1237 (see
Lesson 4) or other locally approved form as appropriate (figure. 2-15).