Topnir offers application development for gasoline and diesel blending, FCC, Crude Distillation Unit, Reformer, Ethylene plant feed and products characterization as well as upstream applications for off shore identification.. With Topnir you can monitor multiple hydrocarbon stream properties in real time. With only one system, Topnir provides the full set of properties from a single model. Topnir accuracy is guaranteed in agreement with the ASTM/ISO worldwide standards. There is no need for one model per property anymore. One model is all you need for all.