Which ASME standard covers below-the-hook lifting devices?

Which ASME standard covers below-the-hook lifting devices?

• A. ASME B30.20
• B. ASME B30.19
• C. ASME B30.79
• D. ASME B30.10

Answer: (A)

Below-the-hook lifting devices are everything attached to the crane’s hook to lift loads—things like slings, spreader bars, magnets, or vacuum lifters. ASME B30.20 is the standard that specifically covers these devices, laying out how they should be designed, inspected, maintained, and used safely. It provides the rules for marking load ratings, compatibility with hoists, and safe operating practices for the attachments themselves. Because this standard targets the actual devices that hang below the hook, it’s the right one for governing their safety and use. The other standards focus on different parts of the lifting system or other aspects of rigging, such as the hook itself or separate lifting provisions, and thus aren’t the ones designated for below-the-hook devices.

Below-the-hook lifting devices are everything attached to the crane’s hook to lift loads—things like slings, spreader bars, magnets, or vacuum lifters. ASME B30.20 is the standard that specifically covers these devices, laying out how they should be designed, inspected, maintained, and used safely. It provides the rules for marking load ratings, compatibility with hoists, and safe operating practices for the attachments themselves. Because this standard targets the actual devices that hang below the hook, it’s the right one for governing their safety and use.

The other standards focus on different parts of the lifting system or other aspects of rigging, such as the hook itself or separate lifting provisions, and thus aren’t the ones designated for below-the-hook devices.