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Detection of changes in industrial saturant & coating grade asphalts relating to crude source and/or refinery process change

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Abstract
This report describes development of a practical test procedur for identifying differences in roofing asphalts which relate primarily to a change in the crude base or bases used in their production. Certain changes in refining procedure, as addition of ferric chloride in air-blowoing, or addition of lime to prevent corrosion, also would be expected to be revealed.
Date
3/1976
Author(s)
"asphalt" file box
Page(s)
Keyword(s)
asphalt; coating; crude source; refinery


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