MIL-PRF-81705 Barrier Materials, Flexible, Electrostatic Discharge Protective, Heat-SealableThis specification establishes the requirements for heat-sealable, electrostatic discharge protective, flexible barrier materials used for the military packaging of microcircuits, sensitive semiconductor devices, sensitive resistors, and associated higher assemblies. In addition, the type I materials provide for watervaporproof protection and attenuation of electromagnetic interference effects \(see 6.1\).

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MIL-PRF-81705E

4.2 Qualification inspection. The qualification inspection shall consist of all tests and

examinations of this specification.

4.3 Conformance inspection. Conformance inspections consist of the required tests listed

in table II and the examinations listed in tables III through V for each production run.

4.3.1 Sampling for conformance inspection. Sampling for inspection shall be performed in

accordance with the provisions set forth in ASQ-Z1.4.

4.3.2 Examination of the end item. For the purpose of determining the sample size in

accordance with ASQ-Z1.4, the lot size shall be expressed in units of rolls or packages of sheets,

as applicable, for examinations specified in 4.3.2.1 through 4.3.2.3.

TABLE II. Conformance tests.

Characteristics

Paragraph

Reference

Seam strength

As received

4.6.1

Sealed after aging

4.6.1

Water vapor transmission rate (type I only)

4.6.1

As received

4.6.1

After aging

4.6.1

Oil resistance (laminated only)

4.6.1

Static decay

4.6.1

Surface resistivity

4.6.8

Electrostatic shielding

4.6.9

Puncture resistance

4.6.1

4.3.2.1 Examination of the end item for defects in appearance, construction, and

workmanship (see table III). For examination of defects within rolls, the sample unit of product

shall be two yards, the full width of the roll. For examination of sheets, the sample unit shall be

two sheets randomly selected from a package. No more than five sample units, randomly

selected, shall be drawn from any one roll or package of sheets, as applicable. Both sides of the

barrier material shall be examined.

4.3.2.2 Examination of the end item for defects in general construction (see table IV). The

sample unit for this examination shall be one roll or one package of sheets, as applicable.

4.3.2.3 Examination of the end item for dimensional defects (see table V). The sample unit

for this examination shall be one roll or one package of sheets, as applicable.