FTIR Analysis has been used for decades to identify the composition of materials and to expose inferior or counterfeit materials alike. Also known as Fourier Transform InfraRed Spectroscopy, there is growing use of this technology in the ID1 (Financial and Drivers License) and ID3 (Passport) form factors. This is due to increased risk of raw materials being substituted for cheaper versions or counterfeit versions masquerading as the 'genuine article'. This occurred recently when when one of Australasia's Steel Importers had to rethink their bridge design due to a batch of steel that was sub par quality as reported by stuff.co.nz.
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