An Integrated Publishing, Inc. Site

An Integrated Publishing Website

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 \(see 6.1\).

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11

MIL-PRF-81705E

TABLE I. Performance requirements � Continued.

Characteristics

Applicable to

Requirements

Test

types

Paragraph

Reference

Water vapor transmission rate (WVTR)

0.0005 (max)

4.6.5

(Modulated Infrared Sensor)

As received (gms/100 sq. in./24 hrs)

Blocking resistance

I, III

No blocking,

4.6.1

delamination, or

rupture

Resistance to curl

I, III

No curl in excess

4.6.1

(Class 1)

of 5% or curl back

upon itself

Contact corrosivity

I, III

No corrosion,

4.6.1

etching, or pitting

Aging resistance

I, III

No delamination

4.6.3

(laminated

only)

Thickness

0.010 inch (max)

4.6.1

III

0.006 inch (max)

Water resistance of markings

I, III

Markings shall be

4.6.1

(printed only) clear and legible

Marking abrasion resistance

I, III

Shall be legible

4.6.6

Water resistance

I, III

No delamination

4.6.1

(laminated

only)

Transparency

III

Lettering shall be

4.6.1

legible 3 inches

behind material

Oil resistance (delamination)

I, III

No leakage,

4.6.1

(laminated

swelling,

only)

delamination, or

embrittlement

Waterproofness

III

No dye

4.6.4

penetration

Puncture resistance

10 lbs (min)

4.6.1

III

6.0 lbs (min)

Static decay

I, III

The decay shall be

4.6.1

not greater than

2.0 seconds

Electromagnetic interference (EMI) attenuation

25 db (min)

4.6.7

III

10 db (min)