Linearity Standards
1.65″ optical area. Sealed 6-piece or 8-piece linearity set.
Traceable linearity standards are used to calibrate spectrophotometers in regulated industries. They can be used to make corrections to the photometric scale. The set of standards consists of 6 or 8 diffuse reflective disks with reflectance values ranging from approximately 99% to 2% and have calibrated spectra in the NIR wavelength region. The disks are sealed and contain a blend of polytetrafluoroethylene and charcoal powders. The certification package includes a table of values, certificate, and spectra. The sealed standards have advantages over comparable sintered PTFE standards. Sintered standards are exposed to changes in lab atmosphere and could get dirty with use. By sealing the standards with a glass window, they are better protected from environmental changes.
Available in an 8-piece set: 99%, 80%, 60%, 40%, 20%, 10%, 5%, 2%, 6-piece set: 99%, 80%, 40%, 10%, 2% and a hyperspectral imaging set: 99%, 40%, 10%, dark, 1920x-40. Recertification also available for sets from other manufacturers.
