ASTM D-4815 Calibration Mix #1

C27 Tetracyclic terpane Z1, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no.

2,6-Dimethylnaphthalene-d12,neat,neat,25mg,

Guanyl Urea-15N4 Hydrochloride, 1mg