scope:

This Japanese Industrial Standard specifies requirements for the external polyethylene powder coated steel pipes (hereafter referred to as coated steel pipes) mainly used for underground services (including the bottom of river and the bottom of sea) of transporting gas, oil, water, etc.

NOTE 1 This Standard is applicable to the straight pipes and deformed pipes of outside diameter 21.7 mm (nominal diameter 15A or ¹/₂B) to 1 625.6 mm (nominal diameter 1 600A or 64B) (see Table 2 and Table 3).

NOTE 2 The coated steel pipes are usually used at temperatures in the range of -40 °C to +60 °C.