ISO 22915-1:2024

Overview

ISO 22915-1:2024 - Industrial trucks - Verification of stability - Part 1: General - defines the basic criteria and test requirements for verifying the stability of industrial trucks. It establishes general procedures (including tilt-table testing, calculation methods and test conditions) that apply across the ISO 22915 series for many truck types - from counterbalanced and reach trucks to variable‑reach, rough‑terrain, pedestrian‑propelled and low‑lift trucks. The standard excludes trucks handling freely swinging suspended loads.

Key topics and requirements

• Scope and applicability: Provides the general framework used by the other parts of ISO 22915 (e.g., ISO 22915-2 to -24) and covers trucks with load‑handling attachments and low‑lift trucks (≤ 500 mm).
• Stability verification methods: Describes accepted verification routes - physical tilt‑table tests, calculations based on empirical data, or equivalent methods (e.g., fixed slope) provided they give the same result.
• Tilt‑table testing: Trucks are placed on a rigid tilt table and tilted smoothly to the slope specified in the relevant part; the truck must not tip over at the specified slope. Wheel separation rules and special-case exceptions (e.g., container handlers) are noted.
• Test conditions and setup:
  • Trucks must be operational and tested in the least‑stable configuration (fuel/battery fill, attachments, tyre pressure, ballast where applicable).
  • Operator mass for sit‑on/stand‑on trucks is simulated by a 114 kg object positioned per ISO 3411 guidance.
  • Lateral tests are conducted toward the least‑stable side; positioning and axle centrelines are defined relative to the truck longitudinal centre plane.
• Safety and documentation: Includes safety precautions for testing and specifies minimum requirements for the test report (added in this 3rd edition).
• Design‑related considerations: Calculations must account for manufacturing variation and component deflections (mast, tyres, etc.).

Applications and users

ISO 22915-1:2024 is practical for:

• Manufacturers and designers validating stability during product development and when fitting attachments.
• Independent test laboratories and certification bodies performing conformity assessments and issuing test reports.
• Fleet managers and procurement teams who require documented stability verification for safety and compliance.
• Safety engineers and maintenance teams assessing retrofits, battery/fuel configurations, or operating conditions that affect tip‑over risk.

Using ISO 22915-1 helps reduce tip‑over incidents, supports regulatory compliance, and provides a consistent basis for comparing truck stability across models and operating conditions.

Related standards

• ISO 22915 series (Parts 2–24) - specific tests for truck types and special conditions
• ISO 5053-1 - Industrial trucks vocabulary / types
• ISO 3411 - Operator mass and space envelope guidance
• ISO 5353 - Seat index point (SIP) guidance

Keywords: ISO 22915-1:2024, industrial trucks, verification of stability, stability tests, tilt table, operator mass, low-lift trucks, safety testing.