1.1 This specification covers two grades of kerosine suitable for use in critical kerosine burner applications: 1.1.1 No. 1-K—A special low-sulfur grade kerosi This specification covers two grades of kerosine suitable for use in critical kerosine burner applications: no. 1-K - a special low-sulfur grade kerosine suitable for use in nonflue-connected kerosine burner appliances and for use in wick-fed illuminat