ISO 23308-2:2025

Overview

ISO 23308-2:2025 - “Energy efficiency of industrial trucks - Test methods - Part 2” specifies standardized energy-consumption test methods for operator-controlled self-propelled trucks, burden and personnel carriers, and towing tractors. It defines test layouts, operating sequences and measurement procedures for a wide range of truck types (e.g., counterbalance lift trucks, reach trucks, straddle trucks, pallet trucks, towing tractors, side- and lateral-stacking trucks, multi-directional lift trucks) as referenced in ISO 5053-1. The procedure is intended for repeatable, comparable energy-efficiency measurement and reporting.

Key topics and technical requirements

• Scope and vehicle types: Lists specific industrial truck types covered and references terminology in ISO 5053-1.
• Test conditions: Adopts general test conditions from ISO 23308-1 (Clause 4) to ensure consistent environmental and setup parameters.
• Measurement procedure: Detailed measurement steps (Clauses 5.1–5.4) include:
  • Test layout diagrams (Figures 1 and 2) for travel cycles and turning radii.
  • Defined operating sequences for each truck family (counterbalance, reach, straddle, towing, etc.).
  • Requirement that tests run for a 1 hour duration (or continue to achieve required cycle counts if the truck cannot reach them within 1 h).
  • Prohibition of simultaneous single-function operations (e.g., no travelling during lift/lower).
  • Typical travelling load height (manufacturer-defined, commonly 300 mm) and tilt/reach settings for certain truck types.
• Test specifications: Tables (Table 1 and Table 2) set test loads, number of cycles, distances, lift heights and other parameters according to rated capacity and truck design.
• Documentation: New Clause 6 requires standardized test reports and declarations to ensure transparency and reproducibility.

Practical applications and users

ISO 23308-2:2025 is used to:

• Enable manufacturers to quantify and publish energy consumption for product data sheets and comparative claims.
• Support test laboratories and certification bodies performing standardized energy-efficiency measurements.
• Help fleet managers and procurement teams compare operating energy use across truck models for lifecycle cost and sustainability assessments.
• Assist market surveillance authorities and consultants in verifying compliance and assessing greenhouse‑gas equivalents (see ISO 23308-1, Annex C).

Typical users: truck manufacturers, test houses, market surveillance agencies, facility managers, and energy-efficiency consultants.

Related standards

• ISO 23308-1:2025 - General test methods, efficiency calculations and reporting (includes GHG calculation guidance).
• ISO 5053-1 - Vocabulary and truck type definitions used in the scope.
• ISO 3691-1 - Safety requirements for self-propelled industrial trucks.

Keywords: ISO 23308-2:2025, energy efficiency, industrial trucks, test methods, operator-controlled trucks, towing tractor, burden and personnel carrier, measurement procedure, test cycle.