ISO 15245-1:2021

This document specifies definitions, dimensions and tolerances of parallel screw threads of M30 x 2, M25 x 2 and M18 x 1,5, for the connection of valves to medical and industrial gas cylinders. This document does not contain the connection requirements for: —    mechanical strength; —    gas tightness; —    capability of repeated assembly and dismounting operations (this aspect is covered in ISO 13341).