MIL-PRF-2819H
3.6 Fire resistance and smoke density. The insulation material shall conform to fire resistance and smoke
density requirements in accordance with MIL-STD-1623 (see 4.4.11).
3.7 Compatibility. The insulation shall be compatible with thermal cement in accordance with ASTM C449
and with high temperature thermal insulating cement in accordance with MIL-C-2861. Without the application of a
primer, the cements shall readily adhere to the insulation blocks and form a smooth, protective surface. Drying time
for each cement after application shall not be greater than 2 hours (see 4.4.12).
3.8 Appearance and workmanship. The insulation shall be free of defects in appearance and workmanship
(see 4.4.3).
3.9 Toxicity. When evaluated in accordance with 4.4.13 [the Health Hazard Assessment (HHA)], the
insulation material shall have no adverse effect on the health of personnel when used for its intended purpose
3.10 Off-gassing. The insulation material shall be tested for off-gassing in accordance with the requirements of
4.4.14. The Navy will review the results and assign a usage category. The required usage category is "Permitted"
3.11 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally
preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the
operational and maintenance requirements, and promotes economically advantageous life cycle costs.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a.
Qualification inspection (see 4.2).
b.
Conformance inspection (see 4.3).
4.1.1 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be performed in
accordance with the test conditions specified herein.
4.1.2 Fire testing provisions. All fire tests specified in this document shall be conducted by an independent
testing laboratory that is accredited to ISO/IEC 17025. Accreditation shall be obtained from a recognized
accreditation body such as American Association for Laboratory Accreditation (A2LA) or International Code
Council s International Accreditation Services (IAS). The scope of accreditation shall include the specific
flammability and fire tests required for qualification. All other fire test provisions shall be as specified (see 6.2 and
4.2 Qualification inspection. Qualification inspection shall consist of the examination and tests listed in
table II. Qualification tests shall be conducted at a laboratory acceptable to the Naval Sea Systems Command
(NAVSEA). Government representatives may witness qualification inspections.
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