Standards cover wavelengths of interest to the Pharma - Biotech Industries. The Kit includes standards and a background solution (125 mL) each contained in a plastic case with paper documentation. The kit includes manufacturer's Certificate of Analysis, Scanning Procedure, Certificate of Traceability, and MSDS Sheet. Includes liquid standards with certified data for 230nm for Polysaccharides, 260 nm for RNA/DNA (nucleic acid), 280 nm for RNA/DNA (proteins), and 320 nm for RNA/DNA (background correction).