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Propane has a narrow range of flammability when compared with other petroleum products. In order to ignite, the propane/air mix must contain from 2.2 to 9.6 percent propane vapor. If the mixture contains less than 2.2 percent gas, it is too lean to burn. If it contains more than 9.6 percent, it is too rich to burn.

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Share your views on new Missouri Propane regulations
2010-03-05

The Missouri Propane Gas Commission will seek industry input as it prepares to update the NFPA Codes that have been on the books for a long time. Adopting newer versions of the existing standards requires a process that will take nine months or longer and includes public notice, public comment and a statement of financial impact. The Commission has developed a form that interested parties may use to submit regulatory comments.

Other existing regulations may also be changed during the same process. For example, the Commission will most likely drop 2 CSR 90-10.020 (7) which requires “all home economic, science, kitchen or laboratory rooms” to maintain a 20 rated ABC fire extinguisher. Local codes and school policies make this state requirement redundant. The Commission also debated 2 CSR 90-10.013 (11) which requires state-approved scales to be utilized to fill all cylinders of 100 pounds or less. Other current revisions or additions will be considered as well.

The next meeting of the Missouri Propane Gas Commission will be Thursday, April 8.