MIL-PRF-26542/10C
TABLE I. Parameter applicability.
Inspection
Qualification
Group
Group
Group
tests
"A"
"B"
"C"
tests
tests
tests
Group I
X
X
Visual and mechanical inspection
X
X
Sensitivity of ground level
X
X
Sensitivity at altitude
X
X
Frequency response at ground level
Frequency response at altitude
X
X
Impedance
Noise cancellation characteristics
Effect of external magnetic field
Stray magnetic field
Linearity
Talk-out
Dielectric withstanding voltage
X
Signal-to-noise
X
X
Distortion
X
X
Interchangeability
X
Group II
Thermal shock
X
X
Humidity
X
X
Drop
X
X
Pressure equalization
Explosive decompression
Salt fog
X
X
Group III
Vibration
X
X
Bounce
X
X
Altitude
X
X
Moisture barrier seal
Immersion
X
X
Group IV
Fungus
X
Group V
Gun blast
X
Changes from previous issue. The margins of this specification are marked with vertical lines to indicate
where changes from the previous issue were made. This was done as a convenience only and the
Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and
contractors are cautioned to evaluate the requirements of this document based upon the entire content,
regardless of the marginal notations and relationship to the last previous issue.
Referenced documents. In addition to MIL-PRF-26542, this document references the following:
USAF Drawing 57B12662
USAF Drawing 67B1854
MIL-J-641/8
MIL-DTL-22442
MIL-DTL-22442/38
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