This International Standard specifies dimensional requirements for the hitch rings of agricultural trailers and trailed implements designed to be attached to agricultural tractor drawbars of clevis type according to ISO 6489-3.
ASAE/ASABE ISO 21244:2008 (R2020)
Original price was: $78.00.$39.00Current price is: $39.00.
Agricultural equipment – Mechanical connections between towed and towing vehicles – Implement hitch rings and attachment to tractor drawbars
The American Society of Agricultural and Biological Engineers , 01/01/2011