FED-STD-791D
Method 6053.1
September 30, 1944
MANIFOLD IGNITION TEST
1. SCOPE
1.1 This method is used for determining the relative flammability of a liquid in
contact with a hot surface.
2. SUMMARY
2.1 The test method consists of dropping the flammable fluid on a hot surface and
observing the presence of a flame.
3. SAMPLE SIZE
3.1 15 mL per test run.
4. REFERENCES, STANDARDS, AND APPARATUS
4.1 Simulated manifold test set up (Figure 1), fabricated from 7.6 cm (3 in) O.D.
corrosion-resistant steel tubing of 0.114 (0.045 in) wall thickness. The exterior of the
tube shall be sandblasted. A 1/8-in diameter 18-8 corrosion-resistant rod 25 cm (10 in)
long shall be tacked to the stack on the exterior surface. Opposite the steel rod, tack,
weld or suitably attach a thermocouple, and insulate the leads. Care should be taken in
this attachment to provide a minimum additional radiating surface.
4.2 Heating element, electrical, "globar" type or equivalent, (Carborundum
Company, AT, 31 12 1, 0.633 Σ unit, or equal), with suitable means for controlling
the temperature of the tube to 704C (1300F).
5. MATERIALS
5.1 CAUTION: SOME MATERIALS ARE TOXIC AND HAZARDOUS. The
materials references and standards 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 Steel wool.
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