Patent ID: 8763805

Claim:
A device for containing a sample material comprising: a first structural layer having an inner surface, an outer surface, and an edge; a second structural layer having an inner surface and an outer surface, wherein the second structural layer is separate from the first structural layer, and the outer surfaces of the first structural layer and the second structural layer comprise an adhesive; a frangible layer attaching the inner surface of the first structural layer to the inner surface of the second structural layer, wherein the frangible layer is set back from the edge of the first structural layer a first distance, and the adhesive on the outer surface of the first structural layer is set back from the edge of the first structural layer a second distance that is less than the first distance; and a sample material contained in the frangible layer, wherein the first structural layer and the second structural layer each comprise a material that has a Z direction tensile strength that is substantially greater than the Z direction tensile strength of the frangible layer between the first structural layer and the second structural layer, and wherein upon application of peel force stress between the first structural layer and the second structural layer, the frangible layer breaks for access to the sample material.