ISO 20019-2001 cor1-2004 PDF

Full title and description

ISO 20019:2001/Cor 1:2004 — Agricultural vehicles — Mechanical connections on towed vehicles — Dimensions for hitch rings — Technical Corrigendum 1. This corrigendum contains technical corrections and clarifications to the published ISO 20019:2001 text, specifically addressing dimensional and editorial items related to hitch-ring geometry and references in the original standard.

Abstract

Technical Corrigendum 1 (2004) to ISO 20019:2001 provides limited corrections to the original International Standard that specifies dimensional requirements for hitch rings used to attach non‑balanced trailers and implements to agricultural towing vehicles. The corrigendum is short (two pages) and is intended to correct errors and clarify dimensions/tolerances so that the base standard continues to ensure interchangeability of mechanical connections.

General information

• Status: Withdrawn (corrigendum published; base standard subsequently revised).
• Publication date: October 2004 (Corrigendum 1 to ISO 20019:2001).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 65.060.10 — Agricultural tractors and trailed vehicles.
• Edition / version: Corrigendum 1 to ISO 20019:2001 (Edition 1 of the base standard; corrigendum edition 1, 2004).
• Number of pages: 2 (corrigendum document).

Scope

The corrigendum applies to ISO 20019:2001, which specifies dimensional requirements for attaching agricultural non‑balanced trailers and implements by means of hitch rings to the rear of towing vehicles equipped with the hook described in ISO 6489‑1. The corrigendum makes limited corrections to figures, dimension values or references in the 2001 text so the base standard continues to ensure interchangeability of mechanical connections on agricultural towed vehicles.

Key topics and requirements

• Corrections to dimensional values or tolerances for hitch rings as published in ISO 20019:2001.
• Clarifications to drawings/figures or editorial references that affect interpretation of ring/hook mating.
• Applies only to rings with coupling points below the rear‑axle centre line and below the tractor PTO, consistent with the base standard’s scope.
• Intended to be used alongside ISO 6489‑1 (hook dimensions/specification) for compatible mating components.

Typical use and users

Manufacturers of agricultural trailers and implements, tractor and towing‑vehicle OEMs, component designers, conformity assessment bodies, test laboratories and national standards bodies use the corrigendum together with ISO 20019:2001 (or its later revision) to ensure interchangeability and correct manufacturing of hitch rings and mating hooks. Engineers and product managers rely on the corrected dimensional information when designing or verifying mechanical connections.

Related standards

Key related documents include the base standard ISO 20019:2001 (corrected by this corrigendum) and the later revision ISO 20019:2025 which supersedes the 2001 edition and its corrigendum. The hitch‑hook specification ISO 6489‑1 (hook dimensions) is a referenced companion standard for mating parts. ISO/TC 23/SC 4 (tractors and towed equipment) is the responsible technical committee.

Keywords

hitch ring, hitch‑ring dimensions, agricultural vehicles, towed vehicles, mechanical connections, hitch hook, ISO 20019, corrigendum, ISO/TC 23/SC 4.

FAQ

Q: What is this standard?

A: ISO 20019:2001/Cor 1:2004 is Technical Corrigendum 1 to ISO 20019:2001 — a short (two‑page) document that corrects and clarifies items in the original standard on hitch‑ring dimensions for agricultural towed vehicles.

Q: What does it cover?

A: It provides limited technical corrections (dimension, figure or editorial fixes) to the 2001 text that specifies dimensional requirements for hitch rings used with tractor hooks; it does not introduce new substantive requirements beyond corrections to the published standard.

Q: Who typically uses it?

A: Trailer and implement manufacturers, tractor OEMs, component designers, testing and conformity assessment bodies, and standards/technical committees involved in agricultural vehicle mechanical connections.

Q: Is it current or superseded?

A: The corrigendum (2004) applied to ISO 20019:2001. Both the 2001 edition and its Corrigendum 1 are shown as withdrawn on the ISO catalogue; the work has been revised and a newer edition ISO 20019:2025 has been published and supersedes the earlier documents. Users should refer to the 2025 edition for the current, authoritative text.

Q: Is it part of a series?

A: ISO 20019 is part of ISO/TC 23/SC 4’s suite of standards addressing mechanical connections between towing and towed agricultural vehicles; related parts and older standards (for example ISO 5692 and hook standard ISO 6489‑1) address other hitch sizes, hook types or historical specifications.

Q: What are the key keywords?

A: Hitch ring, hitch‑ring dimensions, towing hook, agricultural trailers, mechanical connection, interchangeability, ISO 20019, corrigendum.