Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

JavaScript appears to be disabled on this computer. Please click here to see any active alerts.

SW-846 Test Method 8440: Total Recoverable Petroleum Hydrocarbons by Infrared Spectrophotometry

The following document discusses the method for the measurement of total recoverable petroleum hydrocarbons (TRPHs) extracted with supercritical carbon dioxide from sediment, soil and sludge samples.

Method 8440: Total Recoverable Petroleum Hydrocarbons by Infrared Spectrophotometry, part of Test Methods for Evaluating Solid Waste, Physical/Chemical Methods (pdf) (45.01 KB, December 1996)

SW-846 Test Method 8440: Total Recoverable Petroleum Hydrocarbons by Infrared Spectrophotometry

Hazardous Waste Test Methods / SW-846