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 233 of 460

FED-STD-791D

Method 3480.1

September 30, 1986

VOLATILITY OF BLENDED OILS

1. SCOPE

1.1 This method is used for determining the volatility characteristics of a blended

oil.

2. SUMMARY

2.1 The test consists of heating the sample for 24 h at 105�C (221�F), and

determining its percentage of weight lost as result of evaporation.

3. SAMPLE SIZE

3.1 Approximately 10 g of test oil.

4. REFERENCES, STANDARDS, AND APPARATUS

4.1 Oven, gravity-convection, 105� " 0.5�C (221� " 1�F).

4.2 Evaporating disk, aluminum foil, 5.7 cm (2-1/4 in) I.D., 1.6 cm (5/8 in) deep.

4.3 Balance, sensitivity "0.1 mg.

5. MATERIALS

5.1 CAUTION: SOME MATERIALS ARE TOXIC AND HAZARDOUS. The

chemical materials listed in this section must be handled carefully. Federal Test Method

10000, Material Handling Safety Precautions, is a reference which lists all toxic and

hazardous materials cited in FTMS 791. The synonyms, life hazard, flammability,

handling and storage precautions, emergency treatment and measures, and spill practices

of each chemical are explained.

5.2 Test oil.

6. PROCEDURE

6.1 Heat oven 105� " 0.5�C (221� " 1�F).

6.2 Weigh evaporating dish to within 0.2 mg.

6.3 Pour sample into evaporating dish, and weigh dish and contents to within 0.2

mg. Then place dish into heated oven for 24 h.

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