MIL-L-24131 Lubricant, Colloidal Graphite In IsopropanolThis specification covers a noncorrosive, dry, adherent lubricant consisting of a colloidal dispersion of graphite in isopropanol, intended for use with metal parts having limited clearance in applications where control of impurities is required.

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MIL-L-24131C(SH)

Properties of product materials

Lot number                                             Purchase order number

Batch number of concentrate

Batch number of isopropanol

(a)    Used in concentrate

(b)    Used in product dilution

Leakage

Film properties                                      Regular surface                       Irregular surface

(a)    Appearance (b)    Adherence (c)    Spalling

Particle size

(a)    Percent under 4 microns

(b)    Percent over 10 microns

Total solids (percent)

Graphite content (percent of total solids) Analysis based on total solids

(a)    Ash (percent) (b)    Chlorine ppm (c)    Sulfur ppm

(d)    Fluorine ppm

(e)    Lead ppm

(ppm - parts per million) Qualification approval

Approving organization

Date of approval letter

The above tests were conducted in accordance with the applicable paragraphs of this and reference documents.

Signature          

Title          

FIGURE 1.  Sample of certification of quality conformance form.

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