I presume we are talking about patterns used to calibrate the transfer of images to be sure measurements are reproduced correctly.

You should be able to use the term "border pattern" if "Grenzmuster" refers to a border or frame for decoration purposes around the the print.

The supplied context information is barely enough. Are you sure that you understand the function of the object described by the term.If you have a clear idea what it is it might help you find a good eqivalent. From my experience I know that quality audit procedures in their practical application require the use of product cards. Which are laminated pieces of paper with the information about tolerances, included angles, and tool settings.If such card is not foreseen it may mean that the product's conformance to the standard is proved visually by method of attachment of the master to the product. When the operator just checks the conformity without the knowledge of the actual tolerances