 |
|||
|
|
|||
| ||||||||||
|
|  MIL-O-23678B
4.5 Test conditions.
4.5.1 Gas. Unless otherwise specified, the gas used in testing the oxygen
system shall be oxygen conforming to MIL-O-27210, type I.
4.5.2 Temperature and pressure. Unless otherwise specified, tests shall be
conducted at local ambient temperature and barometric pressure. The tempera-
ture and barometric pressure shall be recorded at the time of inspection arid,
when required, the test results shall be corrected to normal temperature and
pressure (NTP) conditions. NTP conditions are 29.92 inches of mercury
(101.3kPa) and 70F (21C). Test instruments shall be calibrated or
adjusted according to their required usage in conducting individual tests.
4.6 Inspection methods.
4.6.1 Visual examination.
4.6.1.1 Oxygen system. Every oxygen system shall be examined visually for
critical defects to determine conformance to this specification. Each oxygen
system, selected as a sample unit from the lot, shall be examined visually for
minor defects to determine conformance to this specification. The classifi-
cation of defects, table II, shall be used to classify the defects found.
4.6.1.1.1 Dimensions. The oxygen system shall be checked dimensionally to
determine conformance to the dimensions specified in MS22059 or MS22061, as
applicable.
4.6.1.2 Packaging. Each of the fully prepared shipping containers,
containing oxygen systems of one type, selected as a sample unit from the lot,
shall be examined to determine that the packaging, packing and marking conform
to this specification. The list of defects, table III, shall be used to
enumerate the defects found.
4.6.2 Leakage. The cylinder shall be charged to maximum operating pressure
and the cylinder valve opened. The "on-off" mechanism of the regulator shall
be placed-in the "off" position for this test. Leak test compond conforming
to MIL-L-25567 shall be applied to all connections, except regulator outlet,
and any areas of potential leaks, to check system leakage. Upon completion-of
this test procedure, the cylinder shall be allowed to reach room temperature,
the cylinder valve closed and the pressure gage shall be marked. The system
shall then be stored for a 6 hour period. After this period, the reading on
the pressure gage shall be noted. The system shall meet the performance
requirements specified in 3.5.1.
4.6.3 Odor. The hose shall be subjected to the odor test specified in
MIL-H-81581 and shall pass the requirements specified in 3.5.2.
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals