Total petroleum hy
Total petroleum hydrocarbons
Total petroleum hydrocarbon (TPH) is a term used for any mixture of hydrocarbons that are found in crude oil. There are several hundred of these compounds, but not all occur in any one sample. Crude oil is used to make petroleum products which can contaminate the environment. Because there are so many different chemicals in crude oil and in other petroleum products, it is not practical to measure each one separately. However, it is useful to measure the total amount of TPH at a site. Chemicals that occur in TPH includehexane, benzene, toluene, xylenes, naphthalene, and fluorene, other constituents of gasoline, of jet fuels, of mineral oils, and of other petroleum products. Petroleum Hydrocarbon Ranges are monitored at various levels depending on the state and testing site.
Various methods to analyze the components of TPH are introduced in a Nordic report. The report evaluates critically various new methods replacing the old ones using bannedozone depleting substances.