I will be doing my second major writing assignment on lower and upper flammability limits of methane in air in standard Iowa weather conditions. Due to the nature of the assignment and my topic it is likely that I will have to focus on one of the limits, not both. LFLs and UFLS have been widely tested across many conditions, however slight variations in temperature, pressure, humidity, air composition, and many other factors may have effects on the LFL and UFL. Recently I conducted a laboratory experiment on LFLs among other things, and therefor already have the data. Data was collected using a flammability chamber built by Fauske & Associates. LFLs and UFLs are extremely important chemical property data because they essentially give the % volume concentration range at which a gas will burn in air under different conditions. This is very important information because it may be used to both transport and store gasses so that they are less likely to explode or cause a fire.