This standard describes the method for the determination of residual salt in JINHE gold alloy platings. The amount of residual salt is determined by boiling platings parts in water with specific conductivity and measuring the added value of conductivity. Applicable to metal parts, not to composite parts. The standard specifies requirements for reagents and instruments, including standards for cleanliness of water, Conductivity Meter and Glass instruments. The test method includes processing steps for samples of different sizes and requires detailed recording of test results and related conditions.