Agilent 7890A GC Refinery Gas Analyzer (RGA) with FID/TCD — a multi-channel, valve-based GC system for complete refinery gas analysis, combining FID and TCD detection with a heated dual-zone valve box, multiple gas-sampling valves, and Aux EPC. Configured for hydrocarbon and permanent gas analysis per ASTM D1945/D1946. Refurbished and tested by Alliant Scientific. Listing last updated: August 2026