MIL-PRF-26542/8C
TABLE II. Parameter applicability.
Inspection 1/
Qualification
Group
Group
Group
tests
"A"
"B"
"C"
tests
tests
Tests
Group I
Visual and mechanical inspection
X
X
Sensitivity at ground level
X
X
Sensitivity at altitude
X
Frequency response at ground level
X
X
Frequency response at altitude
X
Impedance
X
X
Noise cancellation characteristics
Effect of external magnetic field
Stray magnetic field
Linearity
Talk-out
X
X
Dielectric withstanding voltage
X
Signal-to-noise
X
X
Distortion
X
X
Interchangeability
X
X
Air stop
2/
X
X
Group II
Thermal shock
X
X
Humidity
X
X
Drop
X
X
Pressure equalization
X
X
Explosive decompression
Salt fog
X
X
Group III
Vibration
Bounce
X
X
Altitude
X
X
Moisture barrier seal
Immersion
X
X
Group IV
Fungus
X
Group V
Gun blast
X
1/ See MIL-PRF-26542.
2/ See requirements on this specification sheet.
6
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