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 171 of 460

FED-STD-791D

7.2 Calculate the volume percent liquid separation after the second storage period from

the formula:

Average separated liquid (mL) from the three centrifuge tubes

Percent volume liquid separation =

volume percent of additive in the sample

NOTE 5:

The volume percent of additive in the sample can be obtained from the

manufacturer of the gear lubricant.

8. REPORTING

8.1 Report the average amount of separated residue found in the three test samples.

9. PRECISION

9. Precision data have not been developed for this method.

Method Prepared by:

Army - ME - 1986

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