The Indian standard IS 6250
The Indian standard was published in 1981 and comprises the following topics:
- Requirements for dimensions and evenness
- Determination of the bending strength
- Determination of the water absorption
- Determination of the permeability (in this case "impermeability")
- Wetting-drying cycles for the determination of the weathering resistance
- Determination of the resistance to sulphuric acid
|