| http://www.w3.org/ns/prov#value | - oline, benzene, toluene, ethyl benzene, xylenes (BTEX), and other petroleum products in water by virtue of their aromatic hydrocarbon content.The TD-4100 is semi-quantitative in that it detects petroleum-derived products and pollutants in terms of a preset fluorescence level or in terms of levels set by calibration with benzene, gasoline, diesel, or other petroleum product.
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