ISO 9259:1991 Preview
Passenger cars -- Windscreen wiper systems -- Wiper arm-to-blade connections
This standard was last reviewed and confirmed* in 2012.
*Therefore this version remains current
Specifies the main dimensions and general requirements. The preferred types A1 and A2 are for nominal arm sizes 8 mm x 3 mm and 9mm x 3 mm. Details not specified are left to the manufacturer's choice. Annex A forms an integral part of this standard.