Bis Standards For Non-Ferrous Metal Butt Hinges The Bureau of Indian Standards (BIS) has been specified the standard IS 205:1992 for Non-Ferrous Metal Butt Hinge which is widely used in doors, cabinets and other hinged assemblie. This specification establishes the material, dimensions, construction and performance requirements for the durability, corrosion resistance and satisfactory operation of these hinges. After the introduction of IS 205:1992, the makers of non-ferrous metal butt hinges are required to get BIS certification to put their products in Indian market. This certification guarantees the hinges are in compliance with national quality and safety standards, giving users the confidence they need to install quality hardware. The ISI Mark is given on certified products which are in compliance with Indian standards and is synonym of quality products.