MIL-DTL-8790F
TABLE II. Qualification inspection.
Requirement
Test method
Requirement
paragraph
paragraph
Examination of product
Bulge resistance
Proof pressure
Leakage
Burst pressure
Impulse
Low temperature flexibility
Over-tightening torque
TABLE III. Qualification inspection sequence.
Sample number
Required qualification
Test method
test
paragraph
1
2
3
4
5
6
7
8
9
10
Examination of product
X
X
X
X
X
X
X
X
X
X
Bulge resistance
X
X
X
X
Proof pressure
X
X
X
X
X
X
X
X
X
X
Leakage
X
X
Burst pressure
X
X
Impulse
X
X
X
X
Low temperature flexibility
X
X
Over-tightening torque
X
X
Proof pressure
X
X
4.5.4 Failures. One or more failures shall be cause for refusal to grant qualification approval.
4.6 Conformance inspection.
4.6.1 Individual tests.
4.6.1.1 Inspection of the product for delivery. Inspection of the product for delivery shall consist of
subjecting each hose assembly to the individual tests specified in table IV. Any item failing to meet the
requirements of the individual tests shall be immediately removed from the lot.
4.6.2 Sampling tests.
4.6.2.1 Sampling tests plan. Hose assemblies shall be subjected to the sampling tests specified in
table IV.
4.6.2.2 Samples for sampling tests. Samples for sampling tests shall consist of hose assemblies of
one size, randomly selected from an inspection lot without regard to quality. Eight samples from a lot size
of 3,000 hose assemblies or one sample from each smaller lot size of 375 hose assemblies shall be
subjected to the sampling tests. If there has been some production but the number of hose assemblies
produced has not reached 375 for a specific size within three years, the manufacturer shall perform
sampling tests on one hose assembly of that size unless documented approval to not perform the tests
has been obtained from the qualifying activity.
7
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