ISO 23308-6:2025

Overview

ISO 23308-6:2025 is an international standard developed by ISO that specifies test methods for measuring the energy consumption of stacking high-lift container straddle carriers, as defined in ISO 5053-1. This standard is part of the ISO 23308 series, which focuses on the energy efficiency assessment of various industrial trucks. The document provides detailed procedures and test conditions for evaluating how much energy is consumed by straddle carriers during typical operational cycles.

Energy efficiency is a key consideration in the operation and selection of industrial trucks. Accurate and comparable measurements help manufacturers, fleet operators, and market authorities assess and improve the performance and sustainability of container handling equipment in logistics, shipping yards, and container terminals.

Key Topics

• Scope and Definitions: ISO 23308-6 covers only stacking high-lift straddle carriers, with definitions aligned to ISO 5053-1 and ISO 23308-1.
• Test Conditions: The standard outlines specific conditions for load, machine configuration, and environment, including:
  • Standard test load of 30,480 kg using a 20 ft (6,058 mm) container.
  • Testing at environmental temperatures between 10°C and 30°C, with wind speeds not exceeding 10.8 m/s.
  • Truck systems such as air conditioning, running lights, and working lights must be off for testing; stability control must be on if equipped.
• Measurement Procedure: The procedure simulates typical straddle carrier operations:
  • Repeated cycles of picking, lifting, transporting, and lowering containers across a defined route.
  • Both loaded and empty travel, including acceleration and deceleration phases.
  • The operating cycle duration and frequency are standardized to ensure reproducibility.
• Documentation Requirements: Test reports must follow the structure in ISO 23308-1 and include specific cycle durations and any alternate evaluation methods used.

Applications

• Manufacturers: Enables consistent benchmarking of straddle carrier energy efficiency, guiding product development and improvement.
• Fleet Managers & Operators: Assists in selecting equipment with optimal energy performance, reducing operating costs and carbon footprint.
• Market Surveillance Authorities: Provides a harmonized foundation for energy efficiency claims verification and compliance checks.
• Consulting & Service Providers: Offers a standard test method to advise clients on energy consumption and operational best practices.
• Sustainable Fleet Modernization: Supports decarbonization efforts within logistics hubs and container terminals by providing the framework to identify energy-efficient industrial trucks.

Adopting the testing and reporting procedures of ISO 23308-6:2025 contributes to more transparent and sustainable container handling operations.

Related Standards

• ISO 5053-1: Industrial trucks - Vocabulary - Part 1: Types of industrial trucks – provides essential definitions.
• ISO 23308-1: Energy efficiency of industrial trucks - Test methods - Part 1: General – the foundational document for all truck types.
• ISO 3691-1: Industrial trucks - Safety requirements and verification - Part 1: Self-propelled industrial trucks, other than driverless trucks, variable-reach trucks, and burden-carrier trucks.
• ISO 3691-2: Industrial trucks - Safety requirements and verification - Part 2: Self-propelled variable-reach trucks.
• VDI 2198: Guideline referenced for structuring test cycles for energy consumption of industrial trucks.

For full compliance and maximum benefit, ISO 23308-6 should be implemented alongside these associated standards.

Keywords: ISO 23308-6, energy efficiency, straddle carrier, industrial trucks, test methods, container handling, energy consumption measurement, logistics equipment, standardization, container terminals.