MIL-PRF-62028D
4.1.2 Conformance inspection. Conformance inspection shall include the verifications as
specified in table III as defined in the contractual sampling plan (see 6.2 and 6.5).
4.2 Order of inspection. First article inspection sequence shall be as specified in table IV.
Other testing may be in any order except that the environmental requirements verifications
(see 4.3.6) shall precede the leakage test (see 4.3.3.1) and the proof and burst pressure tests
(see 4.3.3.2).
TABLE IV. Order of first article inspection.
Sample number
Title
1
Flexibility
Collapsing resistance
2
Low temperature resistance
Leakage
Proof & burst pressures
3
High temperature resistance
Leakage
Proof & burst pressures
4
Envelope and interface dimensions
Interchangeability
Support and ownership
Vacuum resistance
5
Vibration resistance
Leakage
Proof & burst pressures
6, 7, 8
Fungus resistance
Leakage
Proof & burst pressures
9
Ozone resistance
4.3 Verification methods. The types of verification methods included in this section are
visual, inspection, measurement, sample tests, full-scale demonstration tests, simulation,
modeling, engineering evaluation, component properties analysis, and similarity to previously
approved or previously qualified designs.
6
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