*ASTM/EPA Gasoline Refinery Internal Standard Mix, Varied Conc. by Weight, 5 mL 8778-Serum Free This Certified Reference Material at

This Certified Reference Material at a concentration of 50 µg/mL in Hexane is composed of 16 analytes

B-complex vitamins

0 mg/mL in CH2Cl2 is composed of 27 analytes

This Certified Reference Material at a concentration of 2000 µg/mL in n-Pentane is composed of 12 analytes

This Certified Reference Material at a concentration of 100 µg/mL in Water

*ASTM/EPA Gasoline Refinery Internal Standard Mix, Varied Conc. by Weight, 5 mL 8778-Serum Free This Certified Reference Material atThis Certified Reference Material of varied concentration by Weight is composed of 3 analytes. It is supplied in a unit of 5 mL and should be stored at an ambient temperature of greater than 5 C.