The GB/T 27598-2011 standard specifies the analysis method of 11 trace elements such as iron, copper, lead, bismuth, manganese, zinc, tin, nickel, chromium, cadmium, cobalt in photographic chemicals. The method is detected using Inductance Coupled Plasma Atomic Emission Spectroscopy (AES) (ICP-AES) technology. The standard is suitable for the determination of the concentration range of these elements in photographic inorganic matter, from ng/g to μg/g, and can be analyzed according to the sample diluted to the appropriate concentration. The ICP-AES method has the ability to measure multiple elements simultaneously and is suitable for high-precision trace element analysis. The standard also refers to relevant laboratory water, instrumentation and reagent preparations to ensure the accuracy and Reliability of analytical results.