*Selenium ICP Standard, 1000 µg/mL in 2-5% Nitric Acid, 500 mL 7053-Environmental supplemented with calcium chloride and

supplemented with calcium chloride and magnesium sulfate

PDQ™ is supplied in 48 ready-to-use plastic vials

This Certified Reference Material of varied concentration by volume is composed of 8 analytes

25 mg/mL in CH2Cl2 is composed of a single analyte

This Certified Reference Material of varied concentration in Water is composed of 6 analytes

*Selenium ICP Standard, 1000 µg/mL in 2-5% Nitric Acid, 500 mL 7053-Environmental supplemented with calcium chloride andThis Certified Reference Material at a concentration of 1000 g mL in 2 5% Nitric acid is composed of a single analyte. It is supplied in a unit of 500 mL and should be stored at an ambient temperature of greater than 5 C.