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MIL-C-70501 (AR)
3.
REQUIREMENTS
3.1 Materials.
The materials including packing shall be
in accordance with the applicable drawings and specifications.
3.2 Assemblies.
Container assemblies shall comply with
all the requirements specified on drawing 9345311 and on all
related drawings and with all the requirements specified in the
applicable specifications.
Stability heat test (134.5C).
3.3
The nitrocellulose
in the container assemblies and closure shall not completely
change the color of the methyl violet paper to salmon pink
color in less than thirty-five minutes when tested in accor-
dance with 4.5.2.
3.4 Residue  test.
The container assemblies when loaded
and fired ballistically shall not leave residue which will
cause cartridge hang-up in the mortar tube, shall not produce a
secondary flame after 2 seconds (sec.) minimum (min.) from the
primary flame of the cartridge launch and when fired at zone 4,
shall not produce flaming debris on the ground.
The test
shall be performed as specified in 4.5.3.
3.5  Percent by weight of resin and additives, kraft and
polyester  staple  fiber. The percent by weight of resin and
additives, kraft and polyester staple fiber shall not be less
than 12.95 and not more than 21.55 when tested in accordance
with 4.5.1.3.5.
3.6  Homogeneity of material.
The material used to manu-
facture the parts and assembles shall be uniform in structure
or composition throughout.
The presence of spots of 1/16 inch
or larger diameter or any spot which completely permeates
through the entire thickness of the part of assembly shall
indicate non-homogeneity.
The presence of thin membrane-like
areas shall indicate non-homogeneity.
The top and bottom
halves shall not exhibit non-homogeneities including cracks,
splits, cuts, tears, rips or holes when tested as specified in
4.5.7.  The Government shall establish visual standards prior
to production with the assistance of the contractor.
3.7 Compression  strength  test.
The container assemblies
shall exhibit a compression strength of not less than 0.9
pounds when tested as specified in 4.5.4.
3

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