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Page Title:
Table I - Physical and chemical requirements. |
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|  MIL-L- 24131C(SH)
3.2.1 Isopropanol. The volatile diluent shall be isopropyl alcohol in conformance with the
requirements of grades A or B of TT-I-735.
3.2.2 Binder and dispersant. The binder and the dispersant shall be nonionic organic materials
which are not corrosive to metals. The binder and dispersant shall form a dry film which holds the
graphite to the surface to which the lubricant is applied. The lubricant shall not form a hard unstirrable
cake on settling in storage.
3.2.3 Graphite. Electric furnace graphite, 99 percent purity or higher, shall be used in the
preparation of the lubricant.
3.2.4 Dried solids composition (washed solids). Dried solids from the lubricant shall contain 75
percent 5 percent graphite (see 4.4.3).
3.3 Physical and chemical requirements. Each batch of lubricant shall conform to the requirements
specified in table I.
Table I - Physical and chemical requirements.
Total solids content;
weight percent
3.3 0.5
Graphite content (percent of total
75 5
solids)
Particle size, microns
Maximum dimensions of 90
4
percent of the particles
10
Maximum dimension of any
particle
Ash; weight percent,
0.75
Maximum on total solids
Fluorine, parts per million, (ppm)
Maximum on total solids
20
Chlorine, parts per million,
200
Maximum on total solids
Sulfur, parts per million
Maximum on total solids
200
Lead, parts per million
Maximum on total solids
150
3
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