MIL-PRF-25370F
c.
Safety actuator restraint (see 4.7.10)
4.3.1.2 Sampling plan B. Ten inflator valves shall be selected at random from each lot and shall
be subjected to the following tests as described under 4.7.
a.
Leakage (see 4.7.7)
b.
Operation test with cylinder (see 4.7.8)
c.
Lock (see 4.7.9)
4.3.1.3 Sampling plan C. Upon completion of the individual tests specified in 4.2, random
samples shall be selected from each lot in accordance with inspection level S-3 of the
ANSI/ASQC Z1.4-1993. The sample size shall be based only on the applicable size code letter
corresponding to inspection level S-3. Each inflator valve selected as a sample unit shall be
forwarded to an inspection activity (see 6.3) selected by the procuring activity for the following
tests as described under 4.7.
a.
Examination of product (see 4.7.1)
b.
Operation test without cylinder (see 4.7.2)
c.
Piercing mechanism operation (see 4.7.3)
d.
Actuator operation (see 4.7.4)
4.4
Inspection conditions.
4.4.1 Atmospheric conditions. Unless otherwise specified, all tests required by this specification
shall be made at an atmospheric pressure of 28 to 32 inches of mercury, a temperature of 70 ± 18
degrees Fahrenheit, and a relative humidity of 80 percent or less. If these conditions are not
obtainable, proper corrections shall be made to the tests or the test results to compensate for the
different atmospheric conditions.
4.5
First article inspection. If first articles are specified (see 6.2 and 6.4), the first article shall
consist of two units. First article inspection may consist of one or more of the described sampling
plans (see 4.3).
4.6
Verification alternatives. The pneumatic inflator valve shall meet all performance
requirements in section 3. Verification methods indicated in this section are mandated after
contract execution. Alternative test methods, techniques, or equipment, including the application
of statistical process control or cost effective sampling procedures, can be proposed and used
provided that these alternatives offer equal assurance that all product requirements are met. Such
acceptable alternative verification approaches shall be inserted into the contract as negotiated
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