Certified coated metal plates are ideal for verifying the accuracy and operation of coating thickness gauges and are an important component in fulfilling both ISO and in-house quality control requirements. Many organizations require verification of gauge accuracy at the test site each time a coating thickness gauge is put into service and at frequent intervals during use. Ideal for this purpose, DeFelsko certified coating thickness standards have measured values traceable to a National Metrology Institution. FERROUS S1 0, 3, 10, 60 mils S2 0, 3, 10, 40 mils