Assertion: furnace carbon black | /r/CapableOf | contain to ~2000 ppm of harmful pahs
Facets:
value: typically
type: TEMPORAL
value: between ~150
type: LOCATION
Source sentences:
text: When rCB is processed to PAH levels of < 20 ppm, the corresponding concentrations of harmful substances such as dioxins, furans, polychlorinated biphenyls (PCBs) and pentachlorophenol (PCP) are all below detection limits – rendering rCB products safe to use, even more so than most virgin furnace carbon blacks which typically contain between ~150 to ~2000 ppm of harmful PAHs dependent upon the specific grade and its temperature of manufacture.