This standard specifies materials, construction, dimensions and testing of 25·4 mm diameter aerosol valves.
This standard deals with the valves and not with the associated components, such as containers and products.
The valves are intended to be used for packaging products only once and shall under no circumstance be re-used.
IS 9634-1980 history
1981IS 9634-1980 Aerosol Valve Specifications - 25.4 mm diameter