Improvements relating to test devices

The invention relates to test strip devices 10 comprising first 28 and second 29 major surfaces and comprising: a proximal portion for bearing electrical contacts 18 for a metering device, an intermediate portion 14 for receiving a sample comprising a test area on the first major surface; and a separable distal portion 16; and in which the test device further comprises a cover leaf 22, 24 (optionally a removable cover leaf) having a portion (optionally a removable portion) extending over at least part of one of the major surfaces of the test strip so as to seal the test area and having a non-removable portion attached to the separable distal portion of the test strip. Alternatively a test strip is provided that comprises coverleaves on both major surfaces of the strip each of which comprises a desiccant and at least one of the coverleaves is at least partly removable. The invention also relates to methods of manufacturing such individually packaged test devices, use of such individually packaged. Test devices, and test device cards comprising two or more test devices. In particular,