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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MIL-STD-1623E(NAVY)

w/CHANGE 1

TABLE I. Material requirements - continued.

Category	Material	Specification	Fire test	Test limits
Overhead sheathing2/ continued	PVC film-aluminum laminate	MIL-L-24518	ASTM E84 or UL 723	Flame spread index	25 MAX
				Smoke developed index	75 MAX
				Aluminum thickness	0.063 inch MAX
	PVF film-aluminum laminate	L-P-1040, Type II, Grade A, Class 1	ASTM E84 or UL 723	Flame spread index	25 MAX
				Smoke developed index	75 MAX
				PVF film thickness	0.004 inch MAX
				Aluminum thickness	0.05 inch MAX
Furniture	Vinyl upholstery	A-A-59517, Class 4, Condition a	ASTM D6413	Char length	3 inch MAX
				After flame	2 sec MAX
				Flaming droplets	None
	Upholstery fabric	Commercial	ASTM D6413	Char length	3 inch MAX
				After flame	2 sec MAX
				Flaming droplets	None
	Polychloroprene 15/ cushioning	MIL-PRF- 20092, Type II, Class 5	ASTM E162	Flame spread	10 MAX
			ASTM E66220/	Smoke density	200 MAX
			MIL-PRF- 20092 Appendix A	Net peak HRR	150 kW MAX
				Avg specific extinction area	300 m2/kg MAX
				Burning droplets or flaming material19/	None
	High pressure laminate for table tops4/	MIL-P-17171, Type I	ASTM E84	Flame spread index	75 MAX
				Smoke developed index	50 MAX
				Laminate thickness	0.062 inch MAX
	Polycarbonate	A-A-59502, Type II	UL 94	Flammability	V-0
Draperies and curtains5/	Polyaramid/novoloid	MIL-C-24500, 13/ Type II	ASTM D6413	Char length	3 inch MAX
				After flame	1 sec MAX
				After glow	25 sec MAX
			ASTM E66220/	Smoke density	20 MAX
	Polyaramid	MIL-C-24500, 13/ Type I	ASTM D6413	Char length	5 inch MAX
				After flame	1 sec MAX
				After glow	25 sec MAX
			ASTM E66220/	Smoke density	20 MAX
	Fibrous glass	Commercial	ASTM D6413	Char length	1.5 inch MAX
				After flame	1 sec MAX
				After glow	2 sec MAX
			ASTM E66220/	Smoke density	20 MAX