ISO 14518:2005

Overview

ISO 14518:2005 - Cranes: Requirements for test loads (ISO, 2005) defines standardized methods for composing, measuring and applying test loads used during crane and suspended‑load lifting equipment tests. Developed as a complement to ISO 4310, ISO 14518 covers the types of cranes described in ISO 4306‑1 and provides practical requirements used during static, stability and dynamic testing and commissioning.

Key topics and technical requirements

• Scope and purpose
  • Establishes methods for test load composition and measurement, and procedures for application during crane tests.
• Test load composition
  • Test loads may be single items or multiple components (steel blocks, concrete, water/sand in containers).
  • Containers should be durable, simple in shape (eg rectangular or cylindrical), have internal volume marks and means to drain or empty after testing.
• Mass measurement methods
  • Direct method: mass measured by weighing (floor scales or on‑board mass measurement equipment).
  • Combined method: total mass calculated by summing component masses (directly weighed components and/or calculated mass of container contents using density × marked volume).
• Measurement equipment and accuracy
  • Equipment selection must comply with national specifications.
  • Number and accuracy of mass measurements shall meet ISO 9373 requirements.
  • Calibration and registration data for measuring equipment must be recorded.
• Application procedures
  • Test loads must match the crane’s rated capacity and the type of test (static, stability, dynamic) as specified in ISO 4310 and ISO 7363.
  • Loading procedures should follow manufacturer instructions; gradually increasing loads are acceptable for specific tests.
• Test reporting
  • Test measurement reports must include general load data, identity of the measuring organization/person, date and place, measurement equipment and calibration details, and measured/calculated mass results.

Applications and users

ISO 14518 is essential for:

• Crane manufacturers and designers during factory acceptance tests.
• Inspection and testing bodies performing site acceptance, periodic inspections, or post‑repair proof testing.
• Maintenance teams and safety managers verifying load‑handling performance and structural integrity.
• Certification authorities and regulators ensuring consistent, auditable test procedures and reports.

Practical uses include proof load testing, stability checks, commissioning of new installations, and verification after modifications or repairs.

Related standards

• ISO 4310 - Cranes: Code and methods of testing
• ISO 4306‑1 - Vocabulary for cranes and lifting equipment (types covered)
• ISO 7363 - Technical characteristics and acceptance documents for cranes
• ISO 9373 - Accuracy requirements for measurement parameters during tests

Keywords: ISO 14518:2005, cranes test loads, test load composition, load measurement methods, crane testing, lifting equipment testing, test report requirements.