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TrusTec® Reference Fuel A is a test fluid composed of 99.75% isooctane and 0.10% n-heptane for ASTM D 471 rubber compatibility testing.
TrusTec® Reference Fuel A is a test fuel intended to be used to analyze vulcanized rubber's response to liquid exposure under ASTM D 471. TrusTec® Reference Fuel A is composed of 99.75% isooctane and 0.10% n-heptane by volume, and has a mild action on rubber vulcanizates. This imitates the actions of low-swelling, highly paraffinic gasolines, permitting manufacturers and laboratories to measure the swelling effects produced by commercial gasolines.
Form: Liquid
Color: Colorless
Odor: Mild
Flash point, °F: 18
Molecular weight, g/mol: 114.26
Boiling point, °F: 210
Vapor pressure, psi at 37.8°C: 1.7
Vulcanized rubber that shows reaction with gasoline, such as swelling, shrinking or deterioration, can affect machinery or final product performance, particularly in industries like automotive, aerospace or refining that need rubber components to withstand fuel exposure.
Rubber compatibility analysis
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