This Korean Industrial Standard specifies the screwed type steel pipe fittings (1) (hereafter referred to as "fittings"), to be used for general piping for water, oil, steam, air, gas, etc.
Note (') These fittings are used for carbon steel pipes for the piping specified in KS D 3507. Fittings coated with resin are used mainly for the resin-lined steel pipe for waterworks.
Remark The units and numerical values given in { } in this Standard are based on the traditional units system and are currently the criteria in force.