The ASTM D 5794-95-2021 standard provides a guide for the determination of anions in cathode Electrophoresis paints by Ion chromatography. This method is used to monitor Ion concentrations and contaminants in Electrophoresis tanks, replacing traditional wet chemical methods. The standard describes the application of chemically inhibited and non-inhibited ion chromatographs, with an emphasis on the accurate determination of anions such as nitrates in Electrophoresis bath permeates. In addition, the standard reminds users to comply with safety and environment regulations and ensures regulatory applicability.