IS 11900 : 1986 Tungsten rods and tungsten wire for lamps and electron devices

1 Scope

1.1 This standard covers the requirements of two types of drawntungsten wires suitable for fabrication of parts for lamps andelectron devices, and tungsten rods for glass-to-metal sealing.

Type 1 Non-sag tungsten wire

Type 2 Pure tungsten wire/rod for glass-to-metal sealing.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 1387 : 1967General requirements for the supply of metallurgicalmeterials