Int Society of International Gas Tanker and Terminal Operators creator text 98 London WITHERBYS Publishing 1998 2nd monographic iv, 34 p.: ill. The book advises on PRV maintenance and testing, emergency closure, and operating problems and faults. It should be remembered that this publication is a general guide to the ship's staff and is not designed to replace the manufacturers' instruction manuals. It is recommended that staff who are responsible for the maintenance of these valves should attend the relevant manufacturer's training course. Relief valves - Maintenance and repair Liquefied gas carriers - Safety measures Liquefied natural gas - Transportation - Safety measures 623.865 SIG 1856091635 200103