What are standard testing methods for Gypsum Platers in India ?

The standard gypsum platers testing method, preferably used in India, is simply heating a small amount of soil. The grain of gypsum will change its color to white in a few minutes. However, the grain in minerals will remain the same. Some other standard testing methods are-

  1. The surface should be sandpapered for ultimate smoothness before painting.
  2. The corners need to be checked if they have been smoothly finished.
  3. Check if all the horizontal lines are at the same level.