A solution of known molarity is called a standard solution. Its concentration is determined by a process known as standardization. solution of known molarity is called a standard solution. Its concentration is determined by a process known as standardization.
1. Gypsum False Ceiling: Gypsum false ceiling is a hydrated sulfate of calcium. This type of false ceiling are lightweight, sound insulated, fire resistance, soft and thermally insulated. Gypsum false ceiling comes in the shape of square boards that are hung with the help of iron framework.
Four Types of Ceiling Tiles. There are four broad types of ceiling tiles - acoustical, plastic, tin and cork. Within those categories there is a further break down of tiles by design, installation and use. Acoustical ceiling tiles are used to help soundproof a room.