Irradiance

Spectral reflectance

NATA class of test 1.69.02

ORLAB is NATA accredited for calibration and measurement of spectral reflectance in the geometries of specular included, specular excluded and 0°/45°.

In the wavelength range 280 to 2800 nm

Least uncertainty of measurement vary depending on wavelength band, method used and value of reflectance

These measurements are used to characterise surfaces for calibrating spectrophotometers, reflectance densitometers etc and also for measuring products such window glass, welding curtains etc.

Based on white tiles calibrated by the National Research Council of Canada and coloured tiles calibrated by the National Physical Laboratory, UK.