Tagliabue's Open Cup Tester is recognized as the measuring method in determining inflammable or combustible liquids which give off inflammable vapors at or below 300 degrees F.

Authority: Public Utilities Article, §§2-113, 2-121, and 6-202—6-207, Annotated Code of Maryland

Effective date: August 5, 1954 (Order No. 50880)

Regulations .01—.11 amended effective March 1, 1963 (Order No. 55089)

Regulation .11 amended effective April 15, 1991 (18:7 Md. R. 775); December 9, 1991 (18:24 Md. R. 2646)

Regulation .12 adopted effective May 24, 1962 (Order No. 54910)

Regulation .13 adopted effective January 20, 1992 (19:1 Md. R. 35)

Regulation .13B amended and C adopted effective December 19, 1994 (21:25 Md. R. 2110)