This standard specifies connectors between dental handpieces (hereinafter referred to as handpieces) powered by compressed air and flexible hoses that supply water, air, etc. to the dental handpieces.
JIS T 5905:1993 history
2016JIS T 5905:2016 Dentistry -- Hose connectors for air driven dental handpieces
2010JIS T 5905:2010 Dentistry -- Dental handpieces -- Hose connectors -- Shapes and nominal sizes