characterization factor

characterization factor

[‚kar·ik·tə·rə′zā·shən ′fak·tər]
(chemical engineering)
A number which expresses the variations in physical properties with change in character of the paraffinic stock; ranges from 12.5 for paraffinic stocks to 10.0 for the highly aromatic stocks. Also known as Watson factor.
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The measure of ecotoxicity is obtained by multiplying the emissions (kg) by the corresponding characterization factors ([m.

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