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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 450 of 460

FED-STD-791D

-Titanium; 8Mn Annealed, 110ksi

(758 MPa) yield strength-UNS R56080

-Silver;

99.9 purity, grade A

-Steel;

AMS 5040

-Stainless steel; SAE AMS 5518

10. Glass wool fibre

11. 400 grit silicon carbide paper

12. 30 grit aluminum oxide

3452.2

Bearing compatibility of turbine

1. Naphtha; Aliphatic (TT-N-95),

oils

type11

3456.2

Channeling characteristics of

None

lubricants

3457.2

Hydrolytic stability

Emery paper, 00 or finer

Litmus paper

Petroleum ether (O-E-751)

1,1,1-trichloroethane (methyl

chloroform), stabilized (MIL-T-

81533)

5. n-Hexane , technical grade

6. Sodium sulfate, anhydrous

(ACS)

7. Copper strip (ASTM B

133/ASTM B 272)

3458.1

Low temperature stability test for

None

oil

3459.1

Low temperature stability

1. Methyl alcohol-glycerin

(technical grade), 1: 1 solution

by volume

2. Turbidity standard prepared

with barium chloride, sulfuric

acid, sodium hydroxide, and

distilled water

3. Red dye ( National Erie

Bordeaux B or equivalent)

3463.1

3463.1Stability of grease in hot

1. Distilled water

water (water immersion)

3465.1

Storage stability test of fluids and

1. Aluminum foil, commercial

lubricants

grade

2. Scouring powder, commercial

grade

3. Distilled water

3467.1

Storage stability of lubricating

1. None

449