New Jersey Statutes Title 51. Standards, Weights, Measures and Containers 51 § 4-5

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.