GUIDANCE ON SAFE SLING USE

Sources of Information

• ASME (B30.9, B30.10, B30.20 ) (https://www.asme.org)
• WRTB (Wire Rope Sling Users Manual) (http://www.domesticwirerope.org/wrtb/main_prod.html)
• NIOSH Web page (https://www.cdc.gov/niosh/)
• SELF INSPECTION CHECKLISTS (NIOSH)
  1. Slings - General Requirements (https://www.cdc.gov/niosh/docs/2004-101/chklists/r1n59s~1.htm)
  2. Slings - Steel Chain, Wire Rope, and Metal Mesh (https://www.cdc.gov/niosh/docs/2004-101/chklists/r1n60s~1.htm)
  3. Slings - Natural Rope, Synthetic Rope, and Synthetic Web (https://www.cdc.gov/niosh/docs/2004-101/chklists/r1n61s~1.htm)
• OSHA Web page (https://www.osha.gov)

[1] Qualified person: A person who, by possession of a recognized degree or certificate of professional standing in an applicable field, or who, by extensive knowledge, training, and experience, has successfully demonstrated the ability to solve or resolve problems relating to the subject matter and work.

[2] This collection of information requirement in the standard has been approved under OMB control No. 1218-0223.

[3] This statement is included for informational purposes only. Employers are not required to follow the ASME recordkeeping requirements.

[4] Recognized limits on the number of broken wires include: 1: For strand-laid and single-part slings, 10 randomly distributed broken wires in one rope lay, or 5 broken wires in one strand in one rope lay. 2: For cable-laid slings, 20 broken wires per lay. 3: For six-part braided slings, 20 broken wires per braid. 4: For eight-part braided slings, 40 broken wires per braid.