ISO 2361 "Coating thickness measurement of electrodeposited nickel coatings on magnetic and nonmagnetic substrates. Magnetic method" standard specifies the method of measurement of electrodeposited nickel Coating thickness using magnetic method. The method determines the Coating thickness by measuring the change of magnetic field, which is suitable for nickel coatings on magnetic and nonmagnetic substrates. The standard details the instrument requirements, operation steps and Measurement principles to ensure the accuracy and Repeatability of measurement results. Magnetic method is a non-destructive measurement technology, suitable for rapid detection of Coating thickness in large quantities, widely used in electronics, automotive and other industries. Through the implementation of this standard, accurate data on Coating thickness can be provided, which helps to ensure the quality control and performance evaluation of nickel plating.