Overview
ISO 22915-7:2016 - Industrial trucks - Verification of stability - Part 7: Bidirectional and multidirectional trucks specifies standardized tests to verify the stability of bidirectional and multidirectional industrial trucks (with tilting or non‑tilting mast or fork arms). It also applies to trucks fitted with load‑handling attachments operating under the same conditions. The standard defines test setups, tilt‑table positioning, datum points and test conditions used to assess safety and overturn risk.
Keywords: ISO 22915-7:2016, industrial trucks, stability verification, bidirectional trucks, multidirectional trucks, tilt table tests, load-handling attachments.
Key topics and technical requirements
- Scope and applicability: Covers bidirectional and multidirectional trucks, including those with load‑handling attachments. Refers to ISO 22915-1 for general test conditions and ISO 5053-1 for terminology/classification.
- Test matrix: Nine defined tests (Tests 1–9) evaluate longitudinal, lateral and travelling stability under various operating and stacking modes. Tests simulate conditions such as travel with elevated load, stacking/retrieving, and retracted/extended carrying device positions.
- Truck positioning on tilt table: Precise alignment rules for load/steer axle and drive/steer axle relative to the tilt axis (Figures and Table 1 in the standard). Special point definitions (M and N) apply for sprung castors, articulated frames and single drive wheels.
- Datum points (E and F): Procedures for establishing load datum and reference points on the tilt table. For tilting masts, mast tilt can correct point shifts; for non‑tilting masts regional rules apply (North America: no correction except by mast tilt; other regions allow fork/mast adjustments within design limits).
- Lift heights for travel simulations: For Tests 5, 6 and 7 the fork upper face at the heel is set to 300 mm above the tilt table for trucks ≤ 10 t rated capacity, and 500 mm for trucks > 10 t.
- Tilt table angle calculation: Tilt angle α depends on truck design performance (maximum unladen gradient i and maximum unladen speed v). Example formula given in the standard:
α = 15 + 0.5·i + 1.55·v (capped by regional maxima described in the document).
Practical applications
- Product design validation and stability verification during development of bidirectional and multidirectional industrial trucks.
- Manufacturer conformity testing to demonstrate compliance with international stability requirements.
- Third‑party test laboratories and certification bodies performing tilt‑table tests.
- Fleet managers and safety engineers evaluating operational limits, safe lift heights and attachment impact on stability.
- Risk assessment for warehouse operations where multidirectional trucks are used in confined or sloped areas.
Who uses this standard
- Truck manufacturers and design engineers
- Test laboratories and conformity assessment bodies
- Occupational health & safety professionals and fleet managers
- Regulatory agencies and notified bodies
Related standards
- ISO 22915-1 - General verification of stability (normative reference)
- ISO 5053-1 - Terminology and classification
- Other parts of the ISO 22915 series (Parts 2–24) cover stability verification for specific truck types and special operating conditions.
Open preview (PDF)Industrial trucks — Verification of stability — Part 7: Bidirectional and multidirectional trucks
