UV system test kit for USP/EP pharmacopeia (wavelength + photometric accuracy, stray light + resolution). Includes 40, 60, 120 +600mg/L K2Cr2O7; 4% Ho(ClO4)3; 12g/L KCl, 10g/L NaI + 50g/L NaNO2; 0.02% Toluene/Hexane in sealed quartz cuvettes with a CoA.