This standard specifies the dimensions and deviations of the conveyor belt width, length, total thickness and covering layer thickness and their measurement methods. Dimensions and tolerances and methods of measurement for overall thickness and cover in this standard do not apply to conveyor belts with metal cores.
GB/T 4490-1994 history
2021GB/T 4490-2021 Conveyor belts with textile carcass—Widths and lengths
2009GB/T 4490-2009 Conveyor belts with textile carcass.Widths and lengths