Ficus elastica rubber making. Just as with "Hevea brasiliensis", the latex of "Ficus elastica" is an irritant to the eyes and skin and is toxic if taken internally. Ficus elastica Ficus elastica, the rubber fig, rubber bush, rubber tree, rubber plant, or Indian rubber bush, Indian rubber tree, is a species of plant in the fig genus, native to eastern parts of South Asia and southeast Asia. It has become naturalized in Sri Lanka, the West Indies, and the US State of Florida. It is a large tree in the banyan group of figs, growing to (rarely up to ) tall, with
Tracer use in the oil industry into the formation from a well and then produced out the same well. The delay between a tracer that does not react with the formation (a conservative tracer) and one that does (a partitioning tracer) will give an indication of residual oil saturation, a piece of information that is difficult to acquire by other means. Tracers can be radioactive or chemical, gas or liquid and have been used extensively in the oil industry and hydrology for decades. <br> Tracer use in the oil industry Tracers are used in the oil industry in order to qualitatively or quantitatively gauge how fluid