ISO 20474-11:2017

Overview

ISO 20474-11:2017 is the ISO safety standard that specifies requirements for landfill compactors, a type of earth‑moving machinery defined in ISO 6165. Intended to be used together with ISO 20474‑1 (general safety requirements), this part (Part 11) gives specific measures that take precedence over the general requirements where they differ. The standard addresses hazards during commissioning, operation and maintenance, and applies to machines manufactured on or after its 2017 publication date. Roller compactors are excluded (see ISO 20474‑13).

Key topics and technical requirements

The standard defines targeted safety measures and design considerations for landfill compactor safety, including:

• Operator station and cab

  • A cab is required for landfill compactors.
  • The cab bottom must protect against penetrating material.
  • If cab doors have lower glazing, a guard or equivalent glazing protection is required.
  • Provision for installation of a deodorizing filter and for fitting air‑conditioning (see ISO 10263‑4).
  • Suspension operator’s seat required, compliant with ISO 7096 (input spectral class EM 3).

• Access and guarding

  • Access requirements follow ISO 20474‑1, with the first step height measured from the drum body horizontal reference plane.

• Brake system testing

  • Brake tests are performed with rubber tyres fitted but using the compactor’s operating mass specified for steel wheels.

• Stability and load handling

  • Stability provisions for machines with loading equipment require rated capacities to be based on tests/calculation on level, firm surfaces.
  • Rated operating load and tipping load per ISO 14397‑1, and bucket volumetric rating per ISO 7546, must be considered when determining safe operating limits.

• Warning devices

  • Audible warning (horn) sound level: 102 dB(A) at 7 m (replaces 93 dB value in the general standard).

• Information for use

  • Manufacturer guidance must include requirements such as cab deodorizing filters for special applications.

Applications and who uses this standard

ISO 20474-11:2017 is used by:

• Manufacturers and designers of landfill compactors to design compliant machines.
• Safety engineers and risk assessors for hazard identification and mitigation.
• Test laboratories and certification bodies performing stability, brake and cab safety tests.
• Fleet managers and procurement teams ensuring purchased equipment meets safety specifications.
• Maintenance and operations personnel for safe commissioning and servicing practices.

Adoption of this standard helps reduce operator risk, simplify compliance with regional rules, and improve equipment ergonomics and environmental control in landfill operations.

Related standards

• ISO 20474‑1 (General requirements)
• ISO 6165 (Machine type definitions)
• ISO 7096 (Seat vibration)
• ISO 14397‑1 (Tipping load / rated operating capacity)
• ISO 7546 (Bucket volumetric rating)
• ISO 10263‑4 (HVAC testing)
• ISO 20474‑13 (Roller compactors)
• UNECE R43 (safety glazing)