scope:

This Standard specifies stainless steel threaded fittings (hereafter referred to as "fittings") used for ordinary piping for steam, air, gas, water 1), oil, etc. NOTE: The International Standard corresponding to this Standard and the symbol of degree of corresponding to this Standard and the symbol of degree of correspondence are as follows:

ISO 4144:2003 Pipework-Stainless steel fittings threaded in accordance with ISO 7-1 (MOD)

The symbols which denote the degree of correspondence in the in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent ) according to ISO/IEC Guide 21-1.

Note ¹⁾ It refers to supply water, general service water, water for fire-fighting, water for industrial use, cold and hot water for air-condition, cooling water,etc.