*EPA Method 521 Internal Standard Stock Solution, 1000 µg/mL in Methylene chloride, CAS # 93951-96-3, 5 x 1 mL TPH 1 mg/mL in Water is

1 mg/mL in Water is composed of a single analyte

This Certified Reference Material at a concentration of 10 µg/mL in Isooctane is composed of 7 analytes

This Certified Reference Material at a concentration of 2 µg/mL in Methanol:Water (95:5) is composed of 25 analytes

This Certified Reference Material of varied concentration in Isooctane is composed of 14 analytes

It is supplied as a set of 8 x 100 mL and should be stored at an ambient temperature of greater than 5 °C

*EPA Method 521 Internal Standard Stock Solution, 1000 µg/mL in Methylene chloride, CAS # 93951-96-3, 5 x 1 mL TPH 1 mg/mL in Water isThis Certified Reference Material at a concentration of 1000 g mL in Methylene chloride is composed of a single analyte. It is supplied in a unit of 5 x 1 mL and should be stored in the freezer at less than 10 C.