CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER O—CERTAIN BULK DANGEROUS CARGOES (parts 150 to 155) > PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES > SUBPART D—Special Design and Operating Requirements (§154.1700 to §154.1760) > 154.1750—Butadiene or vinyl chloride: Refrigeration system.

154.1750—Butadiene or vinyl chloride: Refrigeration system.

A refrigeration system for butadiene or vinyl chloride must not use vapor compression unless it:
(a) Avoids any stagnation points where uninhibited liquid can accumulate; or
(b) Has inhibited liquid from the cargo tank added to the vapor upstream of the condenser.