GC-IRMS Standard Kit (0414.11-150-CY, 0415.12-150-CY, 0416.13-150-CY, 0417.14-150-CY, 0418.15-150-CY, 0419.16-150-CY, 0420.17-150-CY, 0421.18-150-CY, 0422.19-150-CY, 0423.20-150-CY, 0400.21-150-CY, 0401.22-150-CY, 0402.23-150-CY, 0403.24-150-CY, 0404