conventional laboratory tests require calibration before each test . this results in the need for a reagent for calibration before each test . additionally , calibration takes a long time , and the total tat of a testing system increases . the testing system thus suffers from the difficulty of improving the testing efficiency . this invention , which has been made to solve the problem , provides a testing element for performing a laboratory test , wherein the testing element includes an information recording section at the surface of and / or inside the testing element , and the information recording section stores information on a characteristic of the testing element .