ISO 21573-2:2020

Overview

ISO 21573-2:2020 defines standardized procedures for examining the technical and commercial parameters of factory‑new concrete pumps. It covers both piston-type and rotary-type concrete pumps (as defined in ISO 21573‑1) and applies to mobile concrete pumps (with or without concrete‑placing boom) and stationary concrete pumps. The document gives measurement conditions, required apparatus accuracy and step‑by‑step test procedures to verify declared performance and dimensional data.

Key topics and requirements

The standard specifies measurable technical parameters and how to test them, including:

• Overall parameters
  • Operating mass (measuring conditions such as full fuel, 75 kg driver, full hydraulic/cooling systems)
  • Overall dimensions (length, width, height) with defined measurement conditions
  • Required measuring apparatus and accuracy (e.g., truck scale accuracy 0.5 %)
• Pumping performance
  • Piston pump: pumping output, concrete delivery pressure and associated test procedures
  • Rotary pump: testing methods for single‑roller and double‑roller types; Annex A covers theoretical output and delivery pressure
• Feeding height of hopper: test conditions and measurement equipment
• Water pump performance: relief pressure and no‑load water output tests
• Concrete‑placing boom performance
  • Maximum reach/height, section angles, unfolding/folding time, slewing speed and angle, boom pressure
• Outriggers
  • Span, maximum load per outrigger, movement speed and system pressure, plus measurement procedures

The second edition (2020) expands the 2008 edition by adding actual pumping output and efficiency measurements under defined working conditions and new measurement methods for mass, dimensions, outrigger loads and speeds, and boom characteristics.

Applications and users

ISO 21573-2 is practical for:

• Manufacturers - to validate and declare product specifications consistently
• Test laboratories and certification bodies - for conformity testing and performance verification
• Procurement and fleet managers - to compare equipment on an apples‑to‑apples basis
• Construction contractors and rental companies - for acceptance testing and safety checks
• Regulators and standards committees - to reference objective test methods in regulations

Typical uses include acceptance testing of new machines, product datasheet verification, quality control, and competitive benchmarking.

Related standards

• ISO 21573-1 - Building construction machinery and equipment - Concrete pumps - Part 1: Terminology and commercial specifications (normative reference)

For the full test procedures and official requirements, consult the complete ISO 21573-2:2020 document available from ISO.