U.S.C.G._Mattress__4-3-18.pdf

Fire-resistant mattress is designed for comfort, durability and high fire performance characteristics. Mattress is designed to avoid the use of metal springs and eliminate “feeling” a metal spring, squeaks and bent or loose wires.

Mattress insert is comprised entirely of 100% fire-resistant cushioning.

Mattress shall be covered with breathable, cotton ticking per Federal Specification CCC-C-436E, Type II and comply with the fire performance criteria for mattress ticking stated in MIL-STD-1623E(SH).

Cover to be a four-corner box construction, with two inverted side seams centered on the full mattress length.

Cover to have only one end closure seam and it will be located on the bottom of one end extending the full width of the mattress.

Mattress shall utilize a single lock stitch with nylon thread. Sewing shall consist of 6-8 stitches per inch on seams and end closure. Mattress insert shall utilize fire-resistant latex compound cushioning. A minimum 4” thickness is required to provide adequate comfortability. A 5” thickness is also available. Labeling of completed mattress must be in compliance with applicable state and federal standards. Information will include mattress size, date of manufacture, and the manufacturer’s name. Label shall be of a cloth type, attached by the seam stitching on one end of the mattress. Packaging shall consist of poly bags or cartons of sufficient strength to provide safe transport to using location. Commercial packaging is acceptable with multiple pieces per carton.

The following physical and flammability characteristics must be exhibited by the fire-resistant foam insert. All mattress cushioning shall be fire-resistant. The fire performance characteristics of the mattress cushioning shall not be affected by exposure to water. Cushioning utilized must comply with all of the following physical and flammability properties to be considered. Manufacturer’s certification to all the following and to MIL-STD- 1623E(SH) shall be submitted with each shipment. In addition, test reports from an independent laboratory may be required for verification to all mattress and mattress component fire properties stated within MIL-STD-1623E(SH).

Physical Properties

Property Test Method Value

Density ASTM D3574 5.5 lbs./ft.

Minimum

Indentation (I.F.D.) ASTM D3574 Test B1, 25% deflection on a 2” thickness

35 + 7 lbs.

Compression Set ASTM D3574 Test D - 50% constant deflection - Percent of original thickness

12% Maximum

Elongation ASTM D3574, Test E 100% Minimum

Tear Strength ASTM D3574, Test F 2.0 lbs. inch Minimum

Tensile Strength ASTM D3574, Test E 10 lbs./sq. inch Minimum

Flex Fatigue ASTM D3574, Test I3 (80,000 cycles)

Thickness Loss Percent of original thickness 10% Maximum

Fungal Resistance ASTM G-21 No growth

Flammability Characteristics

Property Test Method Value

Radiant Panel Index* ASTM E162 Is 10 Maximum

NBS Smoke Chamber* ASTM E662 Flaming and non-flaming modes, 1” samples

Ds 90 seconds 100 max Ds 4 minutes 175 max Dmax 200 max

Composite Mattress Test* ASTM E1590 (NFPA 267) Modified per MIL-PRF-20092M, Appendix A.

Net Peak HRR 150 kW Maximum No flaming droplets Average SEA. 300 m

/kg Maximum

*These two component tests and the one full scale mattress test are fire performance requirements for shipboard cushioning within MIL-STD-1623E(SH)

April 03, 2018

Fire-Resistant Mattress Specification for U.S.C.G.