MIL-STD-1250 Corrosion Prevention And Deterioration Control In Electronic Components And Assemblies S/S By Mil-Hdbk-1250This standard establishes minimum requirements for procedures, materials and systems for protecting electronic components in DoD systems and assemblies from adverse environments. Protective measures shall be sufficient to maintain performance characteristics within specified limits both during and after exposure to moisture, high and low temperatures, corrosive gases, chemicals and microbial fungal attack.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47

MIL-STD-1250A

TABLE X. Arc-resistant materials.

Materials

Specification

Types

Ceramic

Plastic(s), thermosetting, molding

Molding, epoxy compounds Laminated rods and tubes Laminated sheets

Glass cloth, melamine resin

Glass cloth, polytetra- fluoroethylene resin

Glass cloth, silicone resin

Low pressure laminate, silicone resin, glass fiber base

Sheet and rod, cast

Sheet and strip, polyimide

Silicone rubber

MIL-I-10

MIL-M-14

MIL-M-24325

MIL-P-79

MIL-P-15037

MIL-P-19161

MIL-P-997

MIL-P-25518

L-P-516

MIL-P-46112

ZZ-R-765

All

CMI-5, GDI-30, GDI-30F, MAG, MAI-30, MAI-60, MAI-

100, MAT-30, MDG, MME, MMI-5, MMI-30, MSG, }

MSI-30, SDG, SDG-F, SDI-30

MEE GMG

GME GTE GSG

All

E-2

All

5.15 Rubbers and elastomers. Rubbers and elastomers for such applications as gaskets, seals and 0-rings shall be resistant to ozone and weathering, moisture-proof, funginert, and noncorrosive. Blended or reused elastomers shall not be used. Rubber shall be in accordance with MIL-R-3065 or MIL-R-6855 where applicable. Where the mechanical properties are adequate, silicone rubber shall be preferred. Heat shrinkable elastomers may be used where applicable.