ISO 20421-2:2017规定了大型可运输真空绝热低温容器的操作要求。 这些操作要求包括投入使用、填充、取出、在现场运输、储存、维护、定期检查和应急程序。 对于通过公路、铁路、水路、海上和空中运输这些船舶，可适用额外要求；具体规定中对其进行了定义。

ISO 20421-2:2017 specifies operational requirements for large transportable vacuum-insulated cryogenic vessels. These operational requirements include putting into service, filling, withdrawal, transport within the location, storage, maintenance, periodic inspection and emergency procedures. For the transport of these vessels by public road, rail, waterway, sea and air, additional requirements can apply; these are defined in specific regulations.