GB/T 13452.1-1992 is a Chinese national standard that specifies a method for the determination of total lead content in Paints and varnishes using flame atomic absorption spectroscopy (AAS). It is suitable for products with lead content between 0.01% and 2% (mass ratio), and can also be used for the determination of higher levels. The standard is under the jurisdiction of the National Coating and Pigment Standardization Technical Committee, and the competent authority is the China Petroleum and Chemical Industry Federation. It aims to ensure the accurate determination of lead content in Coating products to evaluate their safety and environmental friendliness.