46 CFR 39.40-3 - Design and equipment for vapor balancing

§ 39.40-3 Design and equipment for vapor balancing—TB/ALL.
(a) If the cargo tanks on a vessel discharging cargo and a vessel receiving cargo are inerted, the service vessel must:
(1) Have a means to inert the vapor transfer hose prior to transferring cargo vapor; and
(2) Have an oxygen analyzer with a sensor or sampling connection fitted within 3 meters (9.74 ft.) of the vessel vapor connection which:
(i) Activates an audible and visible alarm at a location on the service vessel where cargo transfer is controlled when the oxygen content in the vapor collection system exceeds 8 percent by volume;
(ii) Has an oxygen concentration indicator located on the service vessel where the cargo transfer is controlled; and
(iii) Has a connection for injecting a span gas of known concentration for calibration and testing of the oxygen analyzer.
(b) If the cargo tanks on a vessel discharging cargo are not inerted, the vapor collection line on the service vessel must be fitted with a detonation arrester that meets the requirements of 33 CFR 154.822(a) located within 3 meters (9.74 ft.) of the vessel vapor connection.
(c) An electrical insulating flange or one length of non-conductive hose must be provided between the vessel vapor connection on the service vessel and the vapor connection on the vessel being lightered or topped-off.

Title 46 published on 2014-10-01

no entries appear in the Federal Register after this date.

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

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United States Code
U.S. Code: Title 33 - NAVIGATION AND NAVIGABLE WATERS
U.S. Code: Title 46 - SHIPPING
Presidential Documents

Executive Order ... 12234