Complete D 25-OH Vitamin D Control from Quantimetrix is a ready-to-use, liquid control for Vitamin D testing that features extended stability. Complete D is formulated with human serum containing 25-OH Vitamin D2 and D3. It has a two-year refrigerated shelf life from the date of manufacture and one-year open vial stability when stored at 2-8°C or for 30 days at room temperature. Values are traceable to the NIST standard SRM 972. Data is provided for LC-MS-MS, Diasorin Liaison, IDS-Direct EIA, IDS-RIA, and LC-MS-MS isotope dilution methods. Complete D is packaged in two levels, 3x3 mL per box.