ALL-TAG recently released results from the IDH test for its NST AM Label. The company’s Acousto Magnetic (AM) Label partner Ningbo Signatronic Technologies, Ltd. (NST) commissioned an IDH test on its NST3T AM label according to VDI 4470, a standard well known worldwide for the special anti-theft devices by the Association of German Engineers. The IDH (Institute of Transport and Trade Logistics) has been providing advice and independent tests for many EAS manufacturers and their customers since the 1990s.