The LEL is the minimum concentration of gas or vapour that must be present in order for ignition to occur. Workers using test instruments must be made aware through training that the reading on the instrument depends on the chemical used to calibrate the instrument. Many combustible gas sensors need a minimum percentage of atmospheric oxygen to function properly. Continuous monitoring is often required to accomplish this. Recent improvements in portable electronic combustible gas detection systems make continuous monitoring more practical. Workers using test instruments must be made aware through training that the reading on the instrument depends on the chemical used to calibrate the instrument. Many combustible gas sensors need a minimum percentage of atmospheric oxygen to function properly. Continuous monitoring is often required to accomplish this. Recent improvements in portable electronic combustible gas detection systems make continuous monitoring more practical. CCI. It does not take into account your individual circumstances and therefore it does not constitute, and should not be relied on as personal advice, for which you should seek professional advice tailored to your own circumstances.
