Petroleum or kerosene, which will flash at a temperature less than one hundred degrees Fahrenheit, flash test, shall have plainly marked upon the container, in which it is sold or offered or exposed for sale, or on a label securely fastened thereto, the number of degrees Fahrenheit, flash test, below which it will not flash, and the words “not for inside light” . Only such product of petroleum, as will not flash at a less temperature or flash test than one hundred degrees Fahrenheit, may be sold for illuminating purposes, except for use in street lamps or open-air receptacles or in gas machines.