MIL-STD-1623 Fire Performance Requirements And Approved Specifications For Interior Finish Materials And Furnishings Naval Shipboard UseThis design criteria standard provides fire performance requirements and approved specifications for various categories of interior finish materials and furnishings for use on Naval surface ship and submarines.

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Category

Material

Specification

Fire test

Test limits

Insulation continued

Anti-sweat pipe insulation15/

EB Corp Spec

4013

Room/corner test (see applicable specification, Appendix A)

Flame spread

1 ft. on horizontal pipe runs MAX

Ignition of target array

None

Melting, dripping or flaming droplets

None

Heat release rate

(material only)

11,384

Btu/minute (200 kW) MAX

Block insulation

MIL-PRF-

2819

ASTM E84

Flame spread index

0 MAX

Smoke developed index

0 MAX

Insulating felt

MIL-I-16411

46 CFR 164.009

Pass8/

Insulating blanket

21/

46 CFR 164.009

Pass8/

0n-deck insulation

22/

46 CFR 164.009

Pass8/

Glass cloth

MIL-C-20079 (All tests before and after treatment)

Type I,

Classes 1, 3, 5,

7, 9

46 CFR 164.009

Pass8/

Type I, Class 2

ASTM E84

Flame spread index

20 MAX

Smoke developed index

10 MAX

Type I,

Classes 4, 6, 8,

10

ASTM D6413 or FED-STD-

191 Method

5903.2

After flame and afterglow

0 sec MAX

Char length

0 inch MAX

Flame travel

1.5 inch MAX

Type II, Classes 1, 3, 4

46 CFR 164.009

Pass8/

Type II, Class

2

ASTM E84

Flame spread index

20 MAX

Smoke developed index

10 MAX

Cellular foam

(Reefer spaces only)

MIL-PRF-

24172

ASTM E84 (before and after humid aging)

Flame spread index

25 MAX

Smoke developed index

250 MAX

Foam thickness

1.0 inch MAX

Melting, dripping, or flaming droplets

None