ISO 2308:1972

Overview

ISO 2308:1972 specifies the basic requirements for hooks designed to lift freight containers with a capacity of up to 30 tonnes. These hooks are intended for use with containers equipped with top corner fittings that comply with ISO 1161. The standard ensures that any hook meeting these basic criteria can be reliably selected and used for safe container handling operations. This standard is critical for maintaining safety, interoperability, and efficiency in cargo handling and logistics environments worldwide.

Key Topics

• Scope: Focuses on point eye hooks used in conjunction with lifting frames for containers up to 30 tonnes.
• Compatibility: Hooks must match containers that use ISO 1161 top corner fittings, ensuring global interoperability.
• Safety Requirements:
  • Specifies minimum lifting capacity for hooks (not less than 8 tonnes per hook when used as a set of four).
  • Hooks should facilitate even load distribution and correct vertical lifting.
  • Limits on tilt angles (maximum 10° in any direction for loads over 25 tonnes) to ensure stability and safety.
• Construction Requirements:
  • Dimensional guidelines for throat width, seat diameter, horizontal and vertical sections are outlined.
  • The lifting frame to which hooks attach must provide equal length and sufficient flexibility.
• Marking:
  • Each hook must be permanently and legibly marked on a non-stressed area with its rated capacity and other identification marks.

Applications

Hooks conforming to ISO 2308:1972 are used in a variety of settings where standardized freight containers are lifted and moved. Typical applications include:

• Port Operations: Integration with cranes and spreader bars for efficient loading and unloading of shipping containers.
• Freight and Logistics: Safe handling and movement of goods in intermodal transport chains, ensuring containers can be lifted securely by a range of lifting solutions.
• Storage Yards: Stack and move containers quickly and with confidence using compliant hooks and lifting frames.
• Construction and Industrial Sites: Handling heavy, containerized materials securely.

Adhering to ISO 2308 increases safety by minimizing the risk of accidents during lifting operations and ensures hooks are compatible with internationally accepted container standards.

Related Standards

Several related ISO standards complement or are referenced by ISO 2308:1972 to ensure complete container handling safety and interoperability:

• ISO 1161: Specifies the corner fittings for series 1 freight containers, which the hooks must engage.
• ISO 2141: Outlines general characteristics and conditions for acceptance of lifting hooks.
• ISO/R 668: Defines dimensions and ratings for freight containers, ensuring proper hook compatibility.
• ISO/R 830: Provides the terminology related to freight containers for clear communication and understanding within the industry.

By using hooks and equipment compliant with ISO 2308 and related standards, logistics providers, container manufacturers, and port operators improve operational consistency, safety, and international compatibility in container handling processes.

Keywords: ISO 2308, freight container hooks, container lifting hooks, 30 tonne capacity, ISO 1161 corner fitting, cargo hooks, lifting frame, logistics safety, port operations, container handling standard.