QCI - Verification of materials for specific chemical and physical properties, verification of the operational execution of works ,knowledge of installation, inspection, testing and repair of refractory linings.Proper installation is an essential prerequisite to maximize the service life of refractories used in many applications. While installation quality cannot reverse selection or product manufacturing deficiencies, installation quality is integral to placement of a monolithic refractory lining structure that is free of structural defects and that is applied in a manner that optimizes the physical properties of the constituent refractory. There are several methods of applying refractory Selection of the proper application mode will depend upon several factors, size of the job, geometry economics, and technology available to carry out the job.