*Oil, Grease & Petroleum Hydrocarbon Mix, 4.13 mg/mL in Freon 113, 1 mL 7027-Inorganic This Certified Reference Material at

This Certified Reference Material at a concentration of 10 µg/mL in Methanol:Water (95:5) is composed of 3 analytes

Buffering is provided by a sodium-potassium phosphate system

This Certified Reference Material in a matrix of Hexane Heptane (50:50) is composed of 2 analytes

15 mg/mL in Methanol is composed of a single analyte

*Oil, Grease & Petroleum Hydrocarbon Mix, 4.13 mg/mL in Freon 113, 1 mL 7027-Inorganic This Certified Reference Material atThis Certified Reference Material at a concentration of 4. 13 mg mL in Freon 113 is composed of a single analyte. It is supplied in a unit of 1 mL and should be stored at an ambient temperature of greater than 5 C.