Towed scraper terminology
ISO 7133:2013 includes towed scrapers and is relevant to terminology and commercial specifications.
Capacity
ISO 6485:1980 provides a volumetric rating procedure for tractor-scraper bowls; actual job capacity can vary.
Tractor connection
ISO 6489-3:2021 and ISO 21244:2008 address defined parts of the tractor drawbar and implement hitch-ring interface.
Hydraulics
ISO 5675:2021 addresses general-purpose quick-action hydraulic couplers. It is not a blanket standard for every aspect of a hydraulic system.
Safety-standard caution
ISO 20474-7:2017 excludes towed scrapers, so it should not be used as the basis for a Dugong whole-machine compliance claim.
Related standards pages
ISO standards hub · Grader scraper ISO guide · Standards vs certification
Rental pathway
For an existing Dugong machine and job suitability, continue to models or rental and leasing. New machine development belongs with Frank’s Final Grade.
Standards references are informational. Confirm the current standard, component documentation, engineering requirements and applicable Australian law before making a conformity or certification claim.
Design-envelope reading: Small tractor hydraulics and the design envelope · Patent scalability, ISO, hydraulics and WHS