Standard Industrialization Classification (SIC) Manual, 1987, Office of Management and Budget

Method 8015C, Nonhalogenated Organics Using GC/FID, Revision 3, November 2000, U.S. Government Printing Office

Method 8015C, Nonhalogenated Organics Using GC/FID, Revision 3, February 2007, U.S. Government Printing Office

Method 8260B, Volatile Organic Compounds by Gas Chromatography/Mass Spectrometry (GC/MS), Revision 2, December 1996, U.S. Government Printing Office

Method 8260C, Volatile Organic Compounds by Gas Chromatography/Mass Spectrometry (GC/MS), Revision 3, August 2006, U.S. Government Printing Office

Method 8270C, Semivolatile Organic Compounds by Gas Chromatography/Mass Spectrometry (GC/MS), Revision 3, December 1996, U.S. Government Printing Office

Method 8270D, Semivolatile Organic Compounds by Gas Chromatography/Mass Spectrometry (GC/MS), Revision 4, February 2007, U.S. Government Printing Office