Anyone know where I can find this info?

We are being asked for the LRV (Light reflective values) of the stainless steel we are using in a hospital, for 240grit 304 DP1 stainless steel, I have asked our suppliers and their polishers and they know nothing about LRV's, I know they exist as there is legislation about it and the hospital requires it to enable them to decide what they can have on their walls around the stainless so it falls withing DDA requirements, can anyone help ?