Most published LFL values are calculated at room temperature.
However, as a given mixture is heated, its flammability increases and thus the concentration required to achieve 100% LFL is less. This source of increased danger is often overlooked.
There are important considerations when choosing an LFL monitor:
First let's look at response accuracy.
There are several technologies used to measure flammability, and few react the same way to all substances.
A sensor or analyzer calibrated to accurately read one substance may be significantly inaccurate for another process component. This variance from perfect accuracy (error) is known as the Response Factor.
There are important considerations when choosing an LFL monitor:
