What is the Difference Between TPH and TRH?

The terms TPH (Total Petroleum Hydrocarbons) and TRH (Total Recoverable Hydrocarbons) are related to petroleum and its hydrocarbon content. The key difference between TPH and TRH is that TPH refers to the total amount of hydrocarbons present in petroleum, whereas TRH refers to the total amount of hydrocarbons that can be recovered from petroleum.

• TPH: This term represents the total amount of hydrocarbons in petroleum, including both recoverable and non-recoverable hydrocarbons. TPH is important for determining the energy content and potential usage of petroleum resources.
• TRH: This term focuses on the amount of hydrocarbons that can be extracted or recovered from petroleum. TRH is often used in the analysis of petroleum hydrocarbons and is recommended in the National Environment Protection (NEPM) guidelines. TRH analysis can be used as a non-specific quantitative screening tool to determine the quantity of organic compounds in a sample.

In summary, TPH measures the total hydrocarbon content in petroleum, while TRH measures the total recoverable hydrocarbons that can be extracted from petroleum. These values can provide insights into the energy potential and recovery efficiency of petroleum resources.

Comparative Table: TPH vs TRH

The key difference between TPH and TRH is that TPH refers to the total amount of hydrocarbons found in petroleum, whereas TRH refers to the total amount of hydrocarbons that can be recovered from petroleum. Here is a table comparing the two:

Both TPH and TRH are used to measure hydrocarbons in crude oil and other petroleum products. Analytical methods for determining TPH and TRH concentrations in soil and groundwater include Method 418.1 or Modified 418.1, Method 413.1 for oil and grease, Modified 8015M for Diesel-Range Organics (DRO), and Modified 8015M for Gasoline-Range Organics (GRO).