Special optical glass cuvette "OS" for the wavelength range of the visible 320÷2,500 nm.
OS indicates that “Special Optical Glass” is used for the window. This crown glass is made from exceptionally pure raw materials and gives improved transmission in the near ultraviolet range.
An empty cell will give a transmission of more than 80 % over a spectral range from 320 nm to 2500 nm. 100-50-20
Technical specifications