MIL-PRF-62309G
TABLE II. Chemical analysis of dust.
Substance
Percent by weight
Silicon dioxide (SiO2)
67 to 69
Ferric oxide (Fe2O3)
3 to 5
Aluminum oxide (A12O3)
15 to 17
Calcium oxide (CaO)
2 to 4
Magnesium oxide (MgO)
0.5 to 1.5
Total alkalis as sodium oxide
3 to 5
(Na2O)
Ignition loss
2 to 3
3.6.2 Seal ozone resistance. The seal shall show no evidence of cracks or breaks due to
ozone exposure (see 4.3.6.2).
3.6.3 Flame resistance. The filtering media shall have a maximum allowable char length
of 127 mm (5 in.) when tested per TAPPI T461 (see 4.3.6.3).
3.6.4 Low temperature. The element shall withstand exposure to a low temperature of
-54C (-65F). The seal compression set shall not exceed 5% of its original height after
subsequent stabilization at room ambient temperature (see 4.3.6.4).
3.6.5 High temperature. The element shall withstand exposure to a high temperature of
71C (160F). The seal compression set shall not exceed 25% of its original height after
subsequent stabilization at room ambient temperature (see 4.3.6.5).
3.6.6 Vibration. The element shall be capable of withstanding the vibration at an
amplitude of 0.9 gravity units and frequency rate from 5 to 500 to 5 hertz (Hz) in each of the
three mutually perpendicular axes (see 4.3.6.6).
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are
classified as follows:
a. First article inspection (see 4.1.1).
b. Conformance inspection (see 4.1.2).
1. Examination (see 4.1.2.2.2).
2. Acceptance tests (see 4.1.2.3).
3. Control tests (see 4.1.2.4).
4.1.1 First article inspection. First article inspection shall be performed on the initial
production ready production-representative units of an order up to 5 units, or whenever else the
contract specifies when first article sample is required (see 3.1). This inspection shall include
8
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business