Use these tubes with the UltraRAE 3000 + and previous generation models to test for specific compounds, including benzene in oil refinery processes and butadiene in polymer and rubber manufacturing. When used with RAESep tubes, the UltraRAE 3000 + photoionization detector, equipped with a 9.8eV PID lamp, can get a benzene snapshot in 60 seconds, or deliver a full STEL measurement over a 15 minute period.