This standard specifies a range of steel cables that have a nominal diameter, d, between 64 mm and 205 mm. Note.- Steel cables having a nominal diameter less than or equal to 60 mm are covered by ISO 2408. Unless specifically requested by the purchaser, the selection of construction, within a group, should be left to the discretion of the purchaser. supplier. This standard does not cover cables for winches or for air transport purposes.