Seat tightness of pressure relief valves
By: Refining Department.
Edition: 3rd ed.
Publisher: American Petroleum Institute
Published: 1991
Place of publication: Washington, D.C. (1220 L St., NW, Washington 20005)
Language: eng
Subjects: Relief valves -- Testing -- Standards -- United States.
Notes: "API standard 527."
"July 1991."