Autoignition temperature (AIT) data , upper flammability limit (UFL) data and, lower flammability limit (LFL) data are often needed for applications that are not sufficiently critical to justify the expense of measured data.  For these cases, Seadata provides estimated data and sell computer applications for making the estimates. 

For information on the accuracy of Seadata methods, please click on the blue hypertext buttons above.

Seadata uses in-house methods to estimate AIT data for hydrocarbons and for halogenated hydrocarbons. Our methods are unsuitable for compounds with molecular weights in excess of 300 and for some uncommon chemical structures.
 

Seadata offers the program UFLAIR as a method for the estimation of upper flammable limit data for hydrocarbons, chlorine compounds, ethers, aldehydes, ketones, esters, alcohols, acids, and other types of compounds.  
For more information on UFLAIR.

Seadata offers the program LFLAIR as a method for the estimation of lower flammable limit data for hydrocarbons, chlorine compounds, ethers, aldehydes, ketones, esters, alcohols, acids, and other types of compounds.  
For more information on LFLair.

While we know of no other methods that yield data that are as accurate as the methods we use for AIT and UFL data, there is one other program that yields equally accurate LFL data.  It is program CHETAH, which is available from ASTM.  Furthermore, program CHETAH can be used to estimate LFL data for a much wider spectrum of compounds than can be estimated by program LFLAIR.