There is a tool used to measure gloss and it s called a gloss meter.
Floor gloss readings.
Gloss readings came about because of the big box retailers and the architects as a way to validate the finish on a finished concrete floor.
Early specifications called out for gloss readings in the 50 or 60 range.
Standard mode to take an individual spot measurement auto repeat mode which automatically takes individual gloss readings at a user definable rate and scan mode for measuring gloss on large surfaces providing the average highest and lowest readings.
A glossmeter also gloss meter is an instrument which is used to measure specular reflection gloss of a surface.
There are a number of different geometries available for gloss measurement each being dependent on the type.
In the beginning the thought process was that you wanted an extremely shiny or a high gloss floor.
Gloss readings are achieved by measuring the reflective index of light.
Gloss the shine or gloss level of a floor which increases with each coat of finish you apply.
However when checking the gloss of a surface physical properties of the surface uniformity surface irregularities must be taken into account.
It is one thing to check a homogenous surface such as glass but measuring the gloss.
Gloss is determined by projecting a beam of light at a fixed intensity and angle onto a surface and measuring the amount of reflected light at an equal but opposite angle.
Today specifications for polished concrete are now including specified gloss readings determined using gloss meters see table.