C.F.R. » Title 46 » CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY › SUBCHAPTER F—MARINE ENGINEERING › PART 64—MARINE PORTABLE TANKS AND CARGO HANDLING SYSTEMS › Subpart C—Pressure Relief Devices and Vacuum Relief Devices for MPTs

46 C.F.R. § 64.61

Rupture disc

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If a rupture disc is the only pressure relief device on the tank, the rupture disc must—

(a) Rupture at a pressure of 125 percent of the maximum allowable working pressure; and

(b) Have a minimum normal venting capacity that is sufficient to prevent the tank pressure from exceeding 137.5 percent of the maximum allowable working pressure.