Personnel using this document should have practical experience in regular laboratory work and should note that this document does not cover all possible safety issues. It is the responsibility of the user to take appropriate safety and health measures and ensure compliance with the conditions stipulated by relevant national regulations. This document describes the determination method of platinum content in nickel-platinum target alloys, which is applicable in the range of platinum content between 1.00% and 15.00%. In addition, this document also refers to normative documents such as GB/T 8170 and GB/T 17684, which provide essential definitions of terms and terms.