The NO storage device, method and use comprises a container (120) having a cavity for containing liquid (105), an inlet (150) for injecting said liquid into said container (120) and said liquid as said An outlet (151) for discharging from the container (120) to the tank part, and a NO gas dissolving part (140) for dissolving gaseous NO in the liquid (105) to generate a NO-containing liquid. The NO gas dissolving part (140) is provided in the container (120) and / or forms a part of the container (120), and the NO gas port (110) is provided in the NO gas dissolving part (140). The NO gas port (110) is configured to be coupled to the NO gas supply unit, and particularly to be detachably coupled, and the NO storage device is configured to connect NO to the liquid (105) in the container. Before inflow It further includes means for separating from removal of the NO-containing liquid (so-called “NO separation means”), and the NO-containing liquid is not removed when the NO flows into the liquid in the container. When NO is removed from the vessel, the NO is not allowed to flow.NO蓄積装置、方法及び使用は、液体(105)を収容するための空洞を有する容器(120)と、前記液体を前記容器(120)へと注入するための入口(150)および前記液体を前記容器(120)から槽部へと排出するための出口(151)と、気体NOを前記液体(105)中に溶解してNO含有液体を生成するためのNOガス溶解部(140)と、を含み、前記NOガス溶解部(140)は前記容器(120)内に設けられ、かつ/あるいは前記容器(120)の一部をなし、NOガス口(110)が前記NOガス溶解部(140)と流体連通し、前記NOガス口(110)はNOガス供給部と結合、特に取外し可能に結合するように構成され、前記NO蓄積装置は、前記容器内において前記液体(105)へのNOの流入を前記NO含有液体の除去から分離する手段(いわゆる「NO分離手段」)をさらに含み、前記NOが前記容器の前記液体に流入している際には前記NO含有液体を除去させず、前記NO含有液体が前記容器から除去されている際には前記NOを流入させない。