Sampling

SB 740-95-20

unknown. However, when new procurement is involved,

transaction, regrouping and marking of the materiel is

base serviceability on acceptance inspection, not on

not required. A miscellaneous lot may be declared

surveillance.

unserviceable as a w hole. The miscellaneous lot must

c. Grand Lot. A grand lot is formed by combining

meet criteria as follows:

(1) Kind, type, and model. All items must be

all lots from one manufacturer into a large single lot.

of the same kind, type, and model.

Actual formation is a paper transaction, regrouping and

(2) Manufacturer.

Each small lot or lot

marking of the materiel is not required. A grand lot, as

such, cannot be declared unserviceable. When, through

fragment must be the product of the same manufacturer

surveillance, a lot within the grand lot appears

or reconditioning agency.

(3) Packaging, packing, and preservation. All

unserviceable, withdraw the lot concerned and take

additional samples by the sampling plan provided in this

items must have the same type packaging, packing,

bulletin. If the suspect lot is found serviceable, it remains

marking, and preservation.

a part of the grand lot. If the suspect lot is found

(4) Storage. All items must be stored under

unserviceable, the lot is eligible for rework or disposal in

similar conditions at the same depot.

accordance with existing regulations. When 20 percent

(5) Serviceability status.

All items must

of the lots within the grand lot have become

possess the same serviceability status, i.e., serviceability

unserviceable, the grand lot shall be dissolved and the

known (based upon prior surveillance) or serviceability

individual lots therein tested on a lot-by-lot basis. A

unknown. However, when new procurement is involved,

grand lot must meet criteria as follows:

base serviceability on acceptance inspection not on

(1) Kind, type, and model. All lots must be the

surveillance.

same kind, type, and model.

f. Mixed Lot. A mixed lot is formed by combining

(2) Manufacture. All lots must be the product

those items with incomplete identification into one lot.

of the same manufacturer or reconditioning agency.

The size of the mixed lot is restricted by the applicable

(3) Packaging, packing, and preservation. All

appendix of this bulletin. Actual formation of the lot is a

lots must have the same type packaging, packing,

paper transaction, regrouping and marking of the

marking, and preservation.

materiel is not required. A mixed lot may be declared

(4) Storage. All lots must be stored under

unserviceable as a whole. The mixed lot must meet

similar conditions at the same depot.

criteria as follows:

(5) Serviceability status.

(1) Kind, type. and model. All items must be

All lots must

possess the same serviceability status, i.e., serviceability

of the same kind, type, and model.

(2) Packaging. packing, and preservation. All

known (based upon prior surveillance) or serviceability

unknown. However, when new procurement is involved,

items must have the same type packaging, packing, and

base serviceability on acceptance inspection not on

preservation.

surveillance.

(3) Storage. All items must be stored under

d. Manufacturer's Lot.

A manufacturer's lot

similar conditions at the same depot.

consists of those items manufactured or assembled by

one manufacturer or reconditioning activity and bearing

2-4. Sampling. Perform sampling for shelf-life items

the same manufacturer's or reconditioning agency's lot

by the instructions in this paragraph and in the applicable

identification number. The manufacturer's lot must meet

appendixes of this bulletin. The sampling instructions

criteria as follows:

that follow are designed to fit the peculiarities of this

(1) Packaging, packing, and preservation. All

group of items.

In some instances, because of

items must have the same type packaging, packing,

configuration, short shelf life, or past quality history,

marking, and preservation.

special sampling may be designed for an item within a

(2) Storage. All items must be stored under

group.

similar conditions at the same depot.

a. Initial Receipt Inspection (IRI). Sampling shall

(3) Serviceability status.

All items must

be conducted in accordance with this paragraph and

possess the same serviceability status, i.e., serviceability

MIL-STD-105 General Inspection Level II, and

known (based upon prior surveillance) or serviceability

Acceptance Quality Level (AQL) of 4.0 percent for Major

unknown. However, when new procurement is involved,

Defectives and 10.0 percent for Minor Defectives.

base serviceability on acceptance inspection not on

b. Prestorage Inspection (PSI). Sampling shall

surveillance.

be conducted by this paragraph and MIL-STD-105,

e. Miscellaneous Lot. A miscellaneous lot is

formed by combining a single manufacturer's small lots

or lot fragments into one lot. The size of miscellaneous

lots is restricted by the applicable appendix of this

bulletin.

Actual formation of the lot is a paper

2-2