SECTION II STORAGE AND SPECIAL INSTRUCTIONS

SB 740-95-10

SECTION II

STORAGE AND SPECIAL INSTRUCTIONS

indicate

sufficient

similarity

all

significant

2-1. Packaging Degrees of Protection. Packaging

characteristics. The formation of a grand lot at a depot is

protection (AR 700-15) shall be to the degree referenced

primarily a paper transaction and does not require any

in the Packaging Segment of the Army Master Data File

rewarehousing or reworking of materiel. Where such

(AMDF) (AR 708-1).

grand lots are formed and sampled for surveillance,

include in re- ports of results a complete description of

2-2. Marking. Marking shall be by MIL-STD-129 or MIL-

the grand lot composition in each case. If the samples

STD- 1188.

drawn from the grand lot indicate dissimilarity of the

individual lots making up the grand lot, the lot shall then

2-3. Storage.

be terminated and manufacturer's lot sampling

a. Type. The type of storage for items listed in

substituted.

appendix A shall be by SB 740-1 or the Packaging

(3) Should the grand lot exceed the allowable

Segment of the AMDF.

acceptance number, the inspection shall stop and the lot

b. Shelf life. The shelf life for each item is provided

reformed into manufacturer's lot and inspected.

as coded data (SLC) in appendix A. The assigned shelf

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

life is based on the principle that the item is packaged

more lots whose identification by manufacturer or lot

and stored in conformance with the requirements of this

number has been lost, and its relationship to other lots

bulletin.

cannot be determined. An example of this is depot roll-

c. Age Control. The items covered by this bulletin

back or repacks or represerved material. Several mixed

will generally be maintained within the shelf-life period

lots may be grouped into grand lots if they are from one

through the application of the first-in-first-out (FIFO)

manufacturer and the inspection data indicates that

principle of stock rotation.

these mixed lots are similar in their significant

characteristics.

2-4.

Formation of Lots.

The selection of

representative samples for storage serviceability

2-5. Inspection.

evaluation is based on the homogeneity of the lot.

a. Frequency. The inspection frequency (IFC) for

Subject to the need for lot homogeneity, lots should be

items listed in appendix A are in ac- cord with AR 740-1.

as large as possible. Lots will consist of manufacturer's

The inspection frequencies for given types of storage

lots, grand lots, or mixed lots.

and given packaging levels of protection (AR 700-15) are

a. Manufacturer's Lots. Use the manufacturer's lot,

contained in appendix B.

batch, cure date, or control number whenever possible in

the selection of samples. This shall include lots of

NOTE

sizable quantities in original packs.

When the shelf-life code (SLC) in the

b. Grand Lots.

AMDF is different than shown in

(1) The grouping together of several lots of

appendix A, the SLC in the AMDF shall

one manufacturer can effect an increase of lot size and,

be used.

thereby, decrease the amount of inspection performed

b. Sampling Plan Determination. Sample using the

per unit in the stockpile.

However, the following

plan given in appendix A, IL and AQL, for MIL-STD-

conditions must be met by these lots before material can

105D.

be considered for grouping into a grand lot.

c. Sample Selection. Select samples of materiel in

(a) Identical stock number, class, type,

a manner that will insure that each unit in the lot has an

or model.

equal chance of being selected. Do not use biased

(b) Same manufacturer.

methods, such as selecting items from the same position

in the container, pallet, or stack, taking all items from one

date, or warranty.

location, or selecting items because they appear non-

(d) Comparable storage history.

defective or defective. If each position or location in a

(e) Identical packaging.

container, pallet, stack, or warehouse is as- signed its

(f) No known significant difference in

own unique number, a table of random numbers, such

quality.

as that in Department of Defense Handbook H53, can be

(2) A grand lot may be formed when the

used to select the sample units to be inspected. This

complete analysis of all available data, including the

procedure will insure that each unit in

conditions noted above, and the technical judgment of

the quality control and reliability management teams

2-1