JJF 2024-2023 "Energy dispersion X-ray Fluorescence (XRF) Spectrometer calibrating specification" applies to the calibration of Energy dispersion X-ray Fluorescence (XRF) Spectrometers for elemental analysis in polymers and metals. Instruments in the field of Miscellaneous can refer to this specification for implementation. This specification defines in detail terms such as energy resolution, that is, parameters of the ability of Light spectrum meters to distinguish energy. Light spectrum meters emit characteristic X-Rays by exciting samples, and use detectors with a certain energy resolution to detect these characteristic X-Rays for quantitative and qualitative analysis. It is mainly composed of excitation source, sample analysis chamber, detector and signal analysis system, and standardizes the calibrating process and method to ensure the accuracy and Reliability of Light spectrum instrument in elemental analysis.