Can anyone tell me how the number assigned in the NFPA diamond for flammability corralates (if it does) with the flammability class of the solvent? That is, are all "4"s on the diamond solvents that are in Class IA & IB, etc. I do not have the code books, and so far have not been able to locate this info on the web. Thanks in advance for any wisdom, Sammye
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