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EC number: 265-057-8
CAS number: 64741-56-6
A complex residuum from the vacuum distillation of the residuum from atmospheric distillation of crude oil. It consists of hydrocarbons having carbon numbers predominantly greater than C34 and boiling above approximately 495°C (923°F).
Samples of four paving fume condensates, collected form the headspace of
heated storage tanks, were tested in a modifed Ames assay according to
ASTM Standard Method E1687 -04. This method has been enhanced to detect
PAH mediated mtagenic activity in petroleum substances.
Four samples were tested in S. typhimurium TA 98, with and without
metabolic activation. Three samples were clearly negative (MI values <
1.0). The remaining sample was marginally positive with an MI value of
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