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FED-STD-791 Lubricants, Liquid Fuels, And Related Products, Testing Method OfThis test method standard is composed of standard test methods for sampling, inspecting and testing lubricants, liquid fuels and related products. It is issued pursuant to the Federal Property and Administration Services Act of 1949, as amended and its application to the purchase of commodities referred to herein is mandatory on all Federal agencies.

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'�NOTE:This draft dated 15 April 2006' by DasH - Page 452 of 460

FED-STD-791D

2.Nitric acid concentrated

3.Hydrochloric acid ,concentrated

4. Ammonium hydroxide,

concentrated

5. Methyl orange indicator solution

6.Ammonium acetate solution

Glacial acetic acid

8. Lead acetate solution, 20 g lead

acetate,20mL glacial acitic acid

and distilled water

9. Tannic acid indicator,0.05g

tannic acid, 2mL glacial acetic

acid, and 48 mL distilled water

10. Ammonium nitrate solution,

30g ammonium nitrate and

distilled water

3720.2

Molybdenum disulfide content of

1. n-Hexane, ACS grade

lubricating grease

2. Oleic acid , USP grade

3. Petrolium ether (o-E-751

3722.2

Molybdenum disulfide content of

1.Hexane, normal ACs

2. Extraction thimble (double

non soap thickened lubricating

thickness 3.3 x 8.0 cm )

grease

3.Filter paper (Whatman No. 1 or

equivalent)

4. Filter paper (Whatman No. 40 or

equivalent

5.Eschka's mixture-2 parts calcined

(light) magnesia thoroughly mixed

with one part of sodium carbonate

6.Bromine water, saturated

7. Barium chloride 10 percent

8. sodium carbonate CP

9. Potassium carbonate, CP

3816.1

Film thickness of dry solid film

1. Aluminum alloy test panel

lubricants

(ASTM B 209) anodized in

accordance with MIL-T-81533

2. 1,1,1- trichloroethane (MIL-T-

81533)

4001.3

Corrosion protection by coating;

1. Sodium chloride(A-A-59282)

Salt spray(fog)test

2. Hydrochloric acid (A-A-59282)

3. Sodium hydroxide (A-A-59282)

4. Bromthymol blue solution,

indicator, 6.0 to 7.6 pH range

5. Distilled water ACS

6. 1,1,1- trichloroethane

7. Cleaning tissue, facial

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