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  • one WS Reflectance Standard
  • Solid Sampling Reflectance standards

WS-1-SL Diffuse Reflectance Standard

Item Code: WS-1-SL

Lead Time: 2 weeks



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For field work or unclean environments, the WS-1-SL can be a good option. Its Spectralon diffusing material can be smoothed, flattened and cleaned if it gets pitted or dirty. Reflectivity is 99% from 400-1500 nm and >96% (250-2000 nm).


  • Diffusing materials – choose from PTFE or Spectralon standards
  • High reflectivity over broad range – >95% reflectivity from 250-2200 nm
  • More options – additional Spectralon reflectance standards and targets also available


Select model to see full specifications


Diffusing Material:
99% (400-1500 nm)>96% (250-2000 nm)
Spectral Range:
250-2000 nm
Dimensions (Housing):
32 mm OD
10 mm thick (tile)
Dimensions (Substrate):
10 mm thick
Housing Material:
30 g