Set Includes (1) Reagent Water Blank - Rw, (1) Standard Solution - Rs(500 μg C/L as USP Sucrose), (1) Standard Solution - Rss (500 μg C/L asUSP 1,4-Benzoquinone), and (1) Rinse Water Standard. Super iOS standardsare packaged in 40 mL glass vials, inserted in a vial cartridge foruse with the Sievers Super iOS System.