Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:8270d:p2
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 8270D (pt 2/2)
Character Range: 819353–819912

and elute from a GC column under the conditions specified in the test method. Hydrocarbon interferences such as vegetable and animal oils and greases, organic acids, chlorinated hydrocarbons, phenols and phthalate esters will also be measured. The presence of petroleum hydrocarbons in TRH may be confirmed by clean-up of the extract with silica gel. However, silica gel clean-up may not completely remove non-petroleum hydrocarbon interferences of biological origin.

10.2.8.2     Sample Extraction
The table below lists the specified US EPA SW-846 methods.