A translucent green, fin Dal can be tested by comparing the value of the percentage by which the light shines through. In a central air conditioner uses a single layer thickness fin. Up to absorb light at approximately 2.3% of white light.
The transparency of graphene can be tested. By comparison, the percentage of light transmission. In Central Weather Graphene, a single layer thick. The absorption is estimated at 2.3% of white light.
Transparency of graphene can be tested. By comparing the percentage that the light shines through, in the mid air graphene with the thickness of single layer. The adsorption of light at about 2.3% of white light.