Gas Detection Technology
⚠️𝐓𝐄𝐒𝐓 𝐘𝐎𝐔𝐑 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄⚠️
You are using a standard 4-gas meter to detect the presence of methane (CH4) in the environment. Your meter is equipped with a catalytic bead LEL sensor, which is calibrated to methane (CH4). If you had a 30% methane/70% air mixture, do you know what your LEL sensor would show on the display at standard temperature and pressure?
Comments (4)
I confess to being old school and I confess to having used 4 gas detectors not nearly as sophisticated as those being used today. Back in my day, anything over 10% of LEL meant we don't go whether it was inside a confined space or out in the open on a haz mat response. The instrument was a simple go or no go detector for LEL.
A lot has changed and I will adapt as needed. Keep in mind in the petrochem industry we bonded and grounded everything. One static explosion of a flammable liquid and the death of a friend and coworker was enough to convince us all that we would never make that mistake again. No ventilators, radios, vacuum hose or vacuum truck operated unless grounded and bonded.
Please explain the correct answer.