Magnetic Springs Water Co. / Stock Standard Solutions / Chemicals Procurement Inc. / Arthur H. Thomas Co. / ACS / Battelle Columbus Laboratories / Eberbach Co. / /
calibration solutions / dilution standard solution / plastics / chemical compound / gas chromatograms / Helium carrier gas flow / all-glass systems / internal standard fortifying solution / sample processing apparatus / needed analyte solutions / chemicals / chemical analysis / internal standard solution / /
Organization
National Park Service / ENVIRONMENTAL MONITORING SYSTEMS LABORATORY OFFICE OF RESEARCH AND DEVELOPMENT U.S. ENVIRONMENTAL PROTECTION AGENCY CINCINNATI / Occupational Safety and Health Administration / Environmental Protection Agency / /