The next spectra are a part of the historical data kindly provided by Karl Norris and collected on his spectrometer Cary 14. This webpage contain 3 spectra of reflectance reference standard.
![Spectrum of CERAMIC, WASHED](https://icnirs.org//wp-content/uploads/2021/07/spectrum408.jpg)
CERAMIC, WASHED
![Spectrum of CERAMIC, WATER WASHED](https://icnirs.org//wp-content/uploads/2021/07/spectrum408.jpg)
CERAMIC, WATER WASHED
![Spectrum of CERAMIC, ETHER WASHED](https://icnirs.org//wp-content/uploads/2021/07/spectrum410.jpg)
CERAMIC, ETHER WASHED
Date online : 3 June 2013