Luminance Contrast Testing is a the difference between one light reflected surface or component, compared to the light reflected from another surface or component by using a spectrometer colour meter.

 

The meters obtains 2 reflective values from the two surfaces and is then entered into a formula (Bowman-Sapolinski Equation) which calculates the Luminance Contrast Reading.

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Readings for tactiles and stair nosing need to be read in both Wet and Dry situations to confirm if the installed product complies with Australian Standards AS1428.4.1:2009.