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EPR spectroscopy has been used to measure properties of crude oil, such as determination of asphaltene and vanadium content. [18] The free-radical component of the EPR signal is proportional to the amount of asphaltene in the oil regardless of any solvents, or precipitants that may be present in that oil. [19]
Ethylene propylene rubber (EPR, sometimes called EPM referring to an ASTM standard) is a type of synthetic elastomer that is closely related to EPDM rubber. Since introduction in the 1960s, annual production has increased to 870,000 metric tons .
Tires are an example of products subject to extended producer responsibility in many industrialized countries. Extended producer responsibility (EPR) is a strategy to add all of the estimated environmental costs associated with a product throughout the product life cycle to the market price of that product, contemporarily mainly applied in the field of waste management. [1]
A magnetic field of 0.62 mT was used requiring a frequency of 17.4 MHz. The first microwave electron spin echoes were reported in the same year by Gordon and Bowers using 23 GHz excitation of dopants in silicon. [2] Much of the pioneering early pulsed EPR was conducted in the group of W. B. Mims at Bell Labs during the 1960s. In the first ...
An EPR spectrometer used for spin-trapping technique. Spin trapping is an analytical technique employed in chemistry [ 1 ] and biology [ 2 ] for the detection and identification of short-lived free radicals through the use of electron paramagnetic resonance (EPR) spectroscopy.
Functions of CPCB comes under both national level and as State Boards for the Union Territories. CPCB, under the Water (Prevention and Control of Pollution) Act, 1974, and the Air (Prevention and Control of Pollution) Act, 1981, aims to promote cleanliness of streams and wells in different areas of the States by prevention, control and abatement of water pollution, and to improve the quality ...
Used oil re-refining is the process of restoring used oil to new oil by removing chemical impurities, heavy metals and dirt. [2] Used industrial and automotive oil is recycled at re-refineries. The used oil is first tested to determine suitability for re-refining, after which it is dehydrated and the water distillate is treated before being ...
Synthetic base oil (by far the most used one): industrial and automotive lubricants. [12] Polyolefins are used for blow moulded or rotationally moulded components, e.g. toys, [13] for heat-shrink tubing used to mechanically and electrically protect connections in electronics, [13] and for rash guards or undergarments for wetsuits. [citation needed]