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|  MIL-I-23145B
4.5.3.2 Empty carbon dioxide cylinders. Unless otherwise specified, the dis-
charged carbon dioxide cylinders conforming to 4.5.3.1, required in conjunction with
the leakage and hydrostatic pressure inspections, shall be held firmly in a vise and
the inflation assembly shall be tightened to a maximum Of 20 inch POUndS for the
type I and III inflation assemblies and a maximum of 30 inch pounds for the type II
assembly.
4.6 Inspection methods.
4.6.1 Dimensional check of the piercing pins. Each of the piercing pins repre-
senting one type inflation assembly, selected as a sample unit from the lot, shall
be thoroughly checked dimensionally, by use of any suitable measuring device, to
determine conformance to this specification. The list of defects, table 111, shall
be used to enumerate the defects found.
4.6.2 Rockwell hardness. The Rockwell hardness of the piercing pin and lever, as
applicable, shall be determined in accordance" with FED-STD-151, method 243, hardness
scale C. At least three hardness determinations shall be made on the piercing pin
and lever, as applicable. For the piercing pin, the hardness shall be determined at
the head, center and near the point. For the lever, the hardness shall be determined
on the flat side that is near the portion which makes contact with the head of the
piercing pin. The hardness shall be determined at a minimum distance of 1/4 inch
apart . The three hardness determinations for each piercing pin and lever, as ap-
plicable, shall be averaged.
l
4.6.3 Visual examinations.
4.6.3.1 Inflation assemblies. Every inflation assembly shall be examined visual-
ly for major defects to determine conformance to this specification. Each inflation
assembly, selected as a sample unit from the lot, shall be examined visually for
minor defects and thoroughly checked dimensionally to determine conformance tO this
The classification and list of defects, tables IV and V shall be
specification.
used to classify and enumerate the defects found.
4.6.3.2 Packaging. Each of the fully prepared shipping containers, containing
inflation assemblies, selected as a sample unit from the lot, shall be examined
visually to determine that the packaging, packing and marking conform to this
The list of defects, table VI, shall be used to enumerate the
specification.
defects found.
4.6.4 Weight. The weight of the inflation assembly shall be determined on any
scale or balance capable of weighing to the nearest 0.1 of a gram.
4.6.5 Leakage.
An applicable discharged carbon dioxide cylinder shall be
4.6.5.1 40 psig.
installed in the inflation assembly as specified in 4.5.3.2. The lever shall
The actuated position is
be in the actuated position during this inspection.
considered to be the position of' the lever after the piercing pin has punctured
the carbon dioxide filled cylinder as specified in 4.6,8. The inflation assembly
shall be immersed in water and air pressure of 40 psig, free of oil and condensed
water vapor, shall be applied at the outlet of the inflation assembly for a minimum
of 10 seconds. While the pressure is applied, the inflation assembly shall be
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