ISO 228-2:1987

Действует

Pipe threads where pressure-tight joints are not made on the threads; Part 2 : Verification by means of limit gauges — 16 стр.

ICS

21.040.30 Special. Including miniature screw threads, pipe threads, etc. / Специальные резьбы. Включая мелкие резьбы, трубные резьбы и т.д.