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.
Types of Sheetrock. Other names for Sheetrock or drywall are gypsum board and plasterboard. In addition to blueboard, greenboard (named for the color of their backing) cement and fiberglass Sheetrock, there are several other kinds, and thinset adheres to any of them. Fire-retardant Sheetrock is the most expensive, but is valuable in areas prone to fire, such as kitchens and rooms with fireplaces.