A blast-resistant container, comprising: - a first open vessel portion having a first circular rim section having a first outer diameter; - a second open vessel portion having a second circular rim section having a second outer diameter, and characterised by - a locking arrangement comprising a ring shaped member having a circular inner circumference, the locking arrangement configured for interconnecting the first and the second open vessel portion, wherein an inner diameter of the ring shaped member is greater than the first and the second outer diameter of the first and the second open vessel portion, respectively, wherein: - sets of first axially parallel connection members having a first length are arranged to an outside surface of the first circular rim section, the sets of first axially parallel connection members being spaced apart with a first distance in a circumferential direction; - sets of second axially parallel connection members having a second length are arranged to an outside surface of the second circular rim section, the sets of second axially parallel connection members being spaced apart with a second distance in a circumferential direction; - an inner surface of the ring shaped member comprises first and second axially separated locking sections; - the first locking section comprises spaced apart sets of axially parallel connection members matching the sets of first axially parallel connection members arranged at the outside surface of the first circular rim; and - the second locking section comprises spaced apart sets of axially parallel connection members matching the sets of second axially parallel connection members arranged at the outside surface of the second circular rim. - a first open vessel portion having a first circular rim section having a first outer diameter; - a second open vessel portion having a second circular rim section having a second outer diameter, and characterised by - a locking arrangement comprising a ring shaped member having a circular inner circumference, the locking arrangement configured for interconnecting the first and the second open vessel portion, wherein an inner diameter of the ring shaped member is greater than the first and the second outer diameter of the first and the second open vessel portion, respectively, - sets of first axially parallel connection members having a first length are arranged to an outside surface of the first circular rim section, the sets of first axially parallel connection members being spaced apart with a first distance in a circumferential direction; - sets of second axially parallel connection members having a second length are arranged to an outside surface of the second circular rim section, the sets of second axially parallel connection members being spaced apart with a second distance in a circumferential direction; - an inner surface of the ring shaped member comprises first and second axially separated locking sections; - the first locking section comprises spaced apart sets of axially parallel connection members matching the sets of first axially parallel connection members arranged at the outside surface of the first circular rim; and - the second locking section comprises spaced apart sets of axially parallel connection members matching the sets of second axially parallel connection members arranged at the outside surface of the second circular rim.