http://dspace.ediindia.ac.in:8181/xmlui//handle/123456789/3367 2026-05-15T15:06:07Z http://dspace.ediindia.ac.in:8181/xmlui//handle/123456789/3604 Toughened Glass Toughened glass acquires a degree of strength for excess of the strength of normal glass sheet or plate glass, which if broken shatters into small and comparatively harmless pieces. It is claimed that the resistance to mechanical stock of toughened plate glass is 4 to 5 times more than that of ordinary plate glass. A toughened glass has better resistance to the vibration, mechanical shock and abrasion. Toughend Glass has to pass the following important tests: i. Transfer strength test on sheets on simply supplied (Modules of rupture and electricity) ii. Impact test: By following weight on sheets supported on two wooden battens iii. Impact by falling weight on sheet evenly bedded (on putty) 2003-03-15T00:00:00Z http://dspace.ediindia.ac.in:8181/xmlui//handle/123456789/3603 Thermometers (Up to 150oC) Thermometer is a simple instrument to measure temperature accurately. The industrial thermometers proposed in the project profile are ‘liquid in glass thermometers’ of the solid stem type or the chemical school type having flexibility in shape and purpose. These thermometers can be developed in various ranges, sizes, shapes to cope with the diversified needs to develop various industrial horizons within the International Standards. 2003-03-15T00:00:00Z http://dspace.ediindia.ac.in:8181/xmlui//handle/123456789/3602 Sodium Silicate Sodium Silicate is a colourless compound of oxides of sodium and silica. It has a range of chemical formula varying in sodium oxide (Na2O) and silicon dioxide or silica (SiO2) contents or ratios. It is soluble in water and it is prepared by reacting silica sand and sodium carbonate at a high temperature ranging from 1200 to 1400OC. Aqueous solution of sodium silicate is called water glass. Sodium silicates are produced in the form of a variety of compounds ranging from Na2O.4SiO2 to 2Na2O.SiO2 by properly proportioning the reactants. Sodium silicates varying in ratio from Na2O.1.6SiO2 to Na2O.4SiO2 are known as colloidal silicates. These are sold as 20% to 50% aqueous solutions called water glass. 2003-03-15T00:00:00Z http://dspace.ediindia.ac.in:8181/xmlui//handle/123456789/3601 Sanitary Ware Today sanitary wares are made from variety of materials each of them having certain advantages over the others. However, sanitary wares made of ceramic has many advantages over those made of other materials and are economical also. It has a wide acceptance in the society. The ceramic sanitary wares are used for sanitation purposes and the product ranges from washbasins, closets, urinals, sinks, baths to hoppers. It has properties like very good resistance to weathering, chemical erosion, mechanical strength and resistance to abrasion. Its use in sanitation has preference over other materials. In near future also the chance for replacing these items by other materials looks very black. They are economical, easy-to-clean, longer life and are available in pleasing colours. 2003-03-15T00:00:00Z