The EM-Tec CXS-5LX calibration standard includes 5 reference materials and a 200µm aperture copper Faraday cup. All mounted in a compact Ø12.7mm standard aluminum pin stub. The copper Faraday cup and aluminum pin stub can serve as a Cu/Al reference for detector gain/zero calibration. Intended for: setting up EDAX detectors and EDS systems including light elements.Reference materials: Mo, Cu, SiO2, BN and C. 200µm copper Faraday cup.