Transportable test arrangement

A transportable test arrangement comprising:

• a freight container having at least a first internal space, wherein one side of the first internal space is open to form an open cavity inside the container;
• and
• a replaceable test chamber forming a test space for receiving one or more components to be tested and/or test equipment,
• wherein the cavity in the container is configured to receive the replaceable test chamber via the open side of the first internal space such that the test chamber goes substantially inside the container and closes the open side of the first internal space, and wherein the replaceable test chamber is removably coupled with the container.