– LabKings provide certified standard solutions for both Organics and Inorganics use (traceable to NIST). – These standard solutions are produced by an accredited laboratory according to ISO / IEC 17025 / 17034 (Guide 34) (A2LA). – Quality systems of the manufacturer are tested by NSF-ISR ISO registered (9001: 2008). – All standard solutions come with a Certificate of Analysis (CofA). – All Inorganic single Element standard solutions carry a 18 months shelf life.
