Tin - DSC calibration standard, 500mg

1,2,3,4,6,7,9-Heptachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Chloroparaffin C14 55% Cl, 100µg/mL in CY, 1ml

Siloxanes - Mix 8, 10µg/ml in Acetone, 5ml