1.556138 XeI 420 1.5739210 ArI 200 1.5797471 ArI 100 1.582110 ArI 230 1.5824412 KrI 180 NIST 1.5887507 ArI 1.58951 KrI 100 Check 1.5904034 ArI 2500 1.5983914 XeI 1060 1.5993859 ArI 8700 1.604428 XeI 1.605766 XeI 6530