MIL-PRF-3135H
4.3.3 Fire performance testing. A running total of material produced for batches shall be kept. Manufacturers'
records shall be used to determine quantities of material delivered. The fire performance tests of MIL-STD-1623
(see 3.5.11 and 4.5.11) shall be conducted as part of the lot acceptance tests once for every 45,359 kilograms
(100,000 pounds) of unmixed material produced for delivery under one or more contracts or orders. If any sample
fails any fire performance test, the tests of 4.5.11 shall be run on every subsequent batch until four successive
batches have passed all required fire performance tests.
4.3.4 Small lots. Conformance tests shall not be required on any delivery of less than 4535 kilograms (10,000
pounds) of unmixed material. However, deliveries of such small quantities that have not been tested shall be so
identified in the manufacturer's records. Once the accumulated total of such untested deliveries reaches 4535
kilograms (10,000 pounds), sample material shall be selected and subjected to the required conformance tests
identified in Table III.
TABLE III. Tests.
Qualification
Conformance
Requirement
Test method
Item
testing
testing
paragraph
paragraph
required
required
Toxicity
Yes
No
3.5.1
4.5.1
Asbestos content
Yes
No
3.5.1.1
4.5.1.1
Total and soluble metal content
Yes
No
3.5.1.2
4.5.1.2
Hazardous air pollutant (HAP) content
Yes
No
3.5.1.3
4.5.1.3
Volatile organic content (VOC)
Yes
Yes
3.5.1.4
4.5.1.4
Flash point
Yes
Yes
3.5.2
4.5.2
Weight
Yes
Yes
3.5.3
4.5.3
Resistance to impact
Yes
Yes
3.5.4
4.5.4
Initial indentation
Yes
Yes
3.5.5.1
4.5.5.1
Residual indentation
Yes
Yes
3.5.5.2
4.5.5.2
Resistance to elevated temperatures
Yes
No
3.5.6
4.5.6
Resistance to moisture and
Yes
No
3.5.7
4.5.7
temperature changes
Moisture absorption
Yes
Yes
3.5.8
4.5.8
Resistance to chemicals
Yes
No
3.5.9
4.5.9
Resistance to corrosion
Yes
No
3.5.10
4.5.10
Fire performance
Yes
Yes (See 4.3.3)
3.5.11
4.5.11
Initial adhesive strength
Yes
Yes
3.5.12.1
4.5.12.1
Adhesive strength after aging
Yes
No
3.5.12.2
4.5.12.2
Adhesive strength after exposure
Yes
No
3.5.12.3
4.5.12.3
Flexibility (Type IV only)
Yes
Yes
3.5.13
4.5.13
Serviceability
Yes
No
3.5.14
4.5.14
Off-gassing (Grade A only)
Yes
No
3.5.15
4.5.15
4.3.5 Noncompliance. If a sample fails to pass its conformance inspections, the lot shall be rejected and the
manufacturer shall notify the cognizant inspection activity of such failure and take corrective action on the materials
or processes, or both, as warranted. Acceptance and shipment of the product shall be discontinued until corrective
action, suitable to the inspection activity, has been taken. After the corrective action has been taken, conformance
inspections shall be repeated on the new lot. In the event of failure after re-inspection, information concerning the
failure shall be furnished to the cognizant inspection activity.
4.4 Inspection conditions. Unless otherwise specified (see 6.2), all tests shall be performed under referee
conditions for temperature and relative humidity. The term referee conditions shall mean a temperature of 23±1 °C
(73±2 °F) and a relative humidity of 50±4 percent. All paint test specimens shall be cured to service in accordance
with manufacturer's ASTM F718 sheet before testing unless otherwise specified (see 6.2).
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