SECTION II STORAGE AND SPECIAL INSTRUCTIONS

SB 740-97-3900

SECTION II

STORAGE AND SPECIAL INSTRUCTIONS

all significant characteristics. The formation of a

6. Applicable Items. The provisions of this bulletin

grand lot at a depot is only a paper transaction and

are applicable to those items listed in appendix A.

does not require any rewarehousing or reworking

7. Preservation, Packaging and Packing. Preserva-

of material. Where such grand lots are formed and

tion, packaging and packing will be in accordance

sampled for surveillance, reports of results should

with the packaging references cited in the Packaging

include a complete description of the grand lot com-

Segment of the Army Master Data File (AR 708-1).

position in each case. If the samples drawn from

8. Marking. Marking will be in accordance with

the grand lot indicate heterogeneity of the individual

MIL-STD-129.

lots making up the grand lot, the grand lot will then be

9. Storage. a. Type. Type of storage will be in ac-

terminated and manufacturer's lot sampling sub-

cordance with SB 740-1.

stituted.

b Age Control. The items covered by this bulletin

c. Mixed Lot. The mixed lot is formed of one or

will be issued on a First-In-First-Out (FIFO) basis

more lots whose identification by manufacturer or

by date of manufacturer.

lot number has been lost and its relation to other lots

c Shelf-Life. The items covered by this bulletin

cannot be determined. An example of this is depot

have an indefinite shelf-life.

rollback or repacks of represerved material. Several

10. Formation of Lots. The selection of representa-

mixed lots may be grouped into grand lots if surveil-

tive samples for surveillance evaluation is based on

lance inspection data indicates that these mixed lots

the homogeneity of the lot Subject to the limitations

are similar in their significant characteristics.

of this rule, inspection lots should be as large as

possible. To encompass these principles, the forma-

11. Storage Quality Control. a. Sample Selection.

tion of lots for surveillance will consist of manu-

Select samples of material in a manner that will as-

facturer's lots, grand lots or mixed lots.

sure each unit in the lot has an equal chance of being

a Manufacturer's Lots. The manufacturer's lot,

selected, Biased methods, such as selecting items from

batch or control number will be used whenever pos-

the same position in the container, pallets or stacks;

sible in the selection of samples. This would include

taking items all from one location; or selecting items

lots of sizeable quantities in original packs.

that appear defective, will not be utilized. The use of

b Grand Lot.

a table of random numbers as contained in the De-

(1) The grouping together of several lots of one

partment of Defense Handbook, H53, is recommended

manufacturer can effect an increase of lot size How-

and will insure random selection of samples.

ever, the following conditions must be met by these

b. Inspection.

lots before material can be considered for grouping

(1) Frequency.

into a grand lot:

(a) Identical stock number, class, type, model.

(b) Same manufacturer.

months.

(d) Comparable storage history.

(e) Identical packaging.

(f) No known significant difference in quality.

(2) The grand lot may be formed when the com-

the con-

analysis of all available data, inch

ment of

ns noted above and the technical j

veillance team, indicate the homogeneity of

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