MIL-STD-1623E(NAVY)
w/CHANGE 1
TABLE I. Material requirements - continued.
NOTES:
1/ Maximum test limits are based upon material bonded to a non-combustible substrate.
2/ Maximum test limits are based upon material attached to, or supported by, a non-combustible substrate.
3/ Use with polychloroprene mattress only.
4/ Wherever a flame spread index higher than 25 is indicated, the material is acceptable since there is no other acceptable material available with a lower flame spread index.
5/ An 8-ounce weight shall be used for materials tested in accordance with ASTM D6413.
6/ Cement test specimen with MIL-A-21016. Permit cement to dry a minimum of 72 hours before conducting fire test.
7/ Materials tested in accordance with method 6411 of FED-STD-501 shall exhibit ignition time no less than 20 seconds. Ignition time is defined as the time in seconds from the initial application of the burners on the sample until the first self-sustaining flame (ignition) is observed issuing from the top surface of the sample.
8/ Materials tested in accordance with 46 CFR 164.009 shall pass all requirements for noncombustibility.
9/ Specimen shall not burn to the 4-inch mark after the first or second ignition.
10/ No wire gauze shall be mounted beneath the specimen and only three (3) specimens cut from the same tile shall be tested. Each of the three (3) specimens shall pass. If any do not pass, the procedure in ASTM D635 which specifies tests in groups of ten (10) specimens (cut from the same tile) shall be followed.
11/ (a) The fire-containment assembly, with attached insulation, shall have withstood the fire endurance test without passage of flame for a time period equal to that for which the classification is desired, and (b) Transmission of heat through the assembly during the fire endurance test period shall not have raised the average temperature on its unexposed surface more than 250 °F (139 °C) above its initial temperature, nor the temperature of any one point on the surface, more than 325 °F (181 °C) above its initial temperature. The test shall be performed in both vertical and horizontal configurations.
12/ Type I shall be tested twice. One with the glass cloth cover facing the heat source, and one with the flexible polyimide foam facing the heat source.
13/ Material shall be tested as received and after five (5) launderings as per AATCC 135 Procedure IIIB in both warp and fill directions.
14/ Test at maximum thickness contemplated for use.
15/ Where test methods are non-standard, but are called out from within the specification or an Appendix to that specification, the test methods will be referenced as such.
16/ Only molten and/or flaming drops requirement applies to tape. Only initial flammability requirements apply to pocketing material.
17/ The A-A-55188 limits the use of blankets to wool material only. The fire performance requirements apply to alternative materials which are subject to approval by Naval Technical Authority.
18/ When materials are not identical on both sides, each side shall be tested as a different specimen (does not apply to cushioning).
19/ This means no flaming droplets or flaming material which fall from the test mattress during the fire test, shall continue flaming after reaching the test platform or floor.
20/ Where test method ASTM E662 is invoked, tests shall be conducted in both non-flaming and flaming modes.
21/ MIL-PRF-2818 has been cancelled without replacement. When this product is required, vendor/contractor shall submit recommended product specification to the Naval Technical Authority for approval prior to use.
22/ MIL-D-23134 has been inactivated. When this product is required, vendor/contractor shall submit recommended product specification to the Naval Technical Authority for approval prior to use.
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