Abstract: A ship or floating support for carrying or storing liquid consisting of a liquefied gas, preferably chosen from methane, ethylene, propane, and butane, cooled in a large tank that is preferably cylindrical and of polygonal cross-section, that is thermally insulated, and of large size with at least its smallest dimension in the horizontal direction, in particular its width, being greater than 20 m and preferably in the range 25 m to 50 m, and presenting a volume greater than 10,000 m3 the reservoir is equipped with at least one attenuation device for attenuating movements of the liquid and having a mechanism for moving the liquefied gas liquid inside the reservoir so as to form a horizontal stream immediately below the free surface of the liquefied gas at least locally over a depth of at least 0.5 m, and preferably at least 2 m.

Abstract: Panel including, in succession, a first rigid board forming the back of the panel, a first thermally insulating layer borne by the backboard, an impervious covering covering the first thermally insulating layer, a second thermally insulating layer which partially covers the impervious covering and a second rigid board covering the second thermally insulating layer, characterized in that it includes a film which covers at least part of the impervious covering which is not covered by the second thermally insulating layer, the film including at least one protective portion and at least one spew portion adjacent to the protective portion, the protective portion and the spew portion being able to be detached from the impervious covering independently of one another.

Abstract: Method for testing the sealing of a test specimen (21) comprising a sealing film and two fibrous reinforcing layers, one on each side of the said sealing film, the said method comprising the steps of: connecting the said test specimen to a test bench (22), conducting a first test of behaviour under pressure, subjecting the said test specimen to at least a first thermal shock, and conducting at least a second test of behaviour under pressure, characterized in that the said method comprises at least the steps of: removing the said test specimen from the said test bench after the said first test of behaviour under pressure, and subjecting the said test specimen to the said first thermal shock remotely from the said test bench, and refixing the said test specimen to the said test bench to conduct the said second test of behaviour under pressure.

Abstract: Panel (1) comprising, in succession, a first rigid board forming the back of the panel, a first thermally insulating layer (3) borne by the said backboard, an impervious covering (4) covering the said first thermally insulating layer, a second thermally insulating layer (5) which partially covers the said impervious covering and a second rigid board (6) covering the said second thermally insulating layer, characterized in that it comprises a film (8) which covers at least part of the said impervious covering which is not covered by the said second thermally insulating layer, the said film comprising at least one protective portion (9) and at least one spew portion (11) adjacent to the said protective portion, the said protective portion and the said spew portion being able to be detached from the said impervious covering independently of one another.