This part of YY 1040 details the requirements for threaded load-bearing couplings used in inhalation anesthesia equipment and ventilators equipped with heavy-duty accessories.
YY 1040.2-2008 Referenced Document
GB/T 9145-2003 General purpose metric screw threads--Limits of sizes for the screw threads of medium quality and preferable plan
YY 1040.1-2003 Anaesthetic and respiratory equipment-Conical connectors-Part 1:Cones and sockets
YY 1040.2-2008 history
2008YY 1040.2-2008 Anaesthetic and respiratory equipment.Conical connectors.Part 2:Screw-threaded weight-bearing connectors