Brochures
Access: Toilet Seat
Luminance Contrast
A guide to specifying Britex Toilet Seats for accessibility
What is Luminance Contrast?
The Luminace Contrast refers to the degree of light absorbed/reflected of different colours. To comply with AS1428 a minimum 30% luminance contrast is required between the toilet seat and the toilet.
Light Reflectance Value (LRV)
To calculate the Luminance Contrast a Light Reflectance Value (LRV) of colours is to be determined. With the understanding that absolute Black will have 0% reflection and absolute White will have 100% reflection we are able to determine the LRV of most commercial colours. Realistically LRV’s of everyday materials will fall between 5%-95%.
The values calculated below are averages based on other sources of independant testing of similar colours/materials. These are to be used as a guide only. Calculations were determined using Access Architect’s The Luminance Contrast Calculator: https://www.accessarchitects.com.au/luminance-contrast-calculator
Britex Black
Vandal Resistant Toilet SeatLRV Value: 7%
Luminance Contrast: 70.83%
Recommended for Access Use
Britex Navy
Vandal Resistant Toilet SeatLRV Value: 15%
Luminance Contrast: 54.85%
Recommended for Access Use
Britex White
Vandal Resistant Toilet SeatLRV Value: 85%
Luminance Contrast: 20.09%
Recommended for Standard Use Only
* Please note all values presented are approximates. The Luminance Colour Contrast Calculator used is to be design tool and should not replace independent testing from a third party to determine the luminance contrast of building materials. Sources used: https://www.protactsystems.com.au/luminance-contrast/ https://www.accessarchitects.com.au/vista-access-architects-blog/luminance-contrast-where-is-it-required