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Load Limits

Inspection Frequency per ASME B30.9

A visual inspection for damage shall be performed by the user or designated person each day or shift the sling is used. A complete inspection for damage shall be performed periodically by a designated person, at least annually. Written records of most recent periodic inspection shall be maintained.

Rejection Criteria per ASME B30.9

Missing or illegible sling identification; evidence of heat damage; slings that are knotted; fittings that are pitted, corroded, cracked, bent, twisted, gouged, or broken; other conditions, including visible damage, that cause doubt as to the continued use of the sling.

Wire Rope Slings

  • Excessive broken wires, for strand-laid and single part slings, ten randomly distributed broken wires in one rope lay or five broken wires in one strand in one rope lay
  • Severe localized abrasion or scraping, kinking, crushing, birdcaging
  • Any other damage resulting in damage to the rope structure
  • Severe corrosion of the rope or end attachments

Chain Slings

  • Cracks or breaks
  • Excessive wear, nicks or gouges
  • Stretched chain links or components
  • Bent, twisted or deformed chain links or components
  • Excessive pitting or corrosion
  • Lack of ability of chain or components to hinge freely
  • Weld splatter

Web Slings

  • Acid or caustic burns
  • Melting or charring of any part of the sling
  • Holes, tears, cuts or snags
  • Broken or worn stitching in load bearing splices
  • Excessive abrasive wear
  • Discoloration and brittle or stiff areas on any part of the sling, which may mean chemical or ultraviolet/sunlight damage


  • Acid or caustic burns
  • Evidence of heat damage
  • Holes, tears, cuts, abrasive wear or snags that expose the core yarns
  • Broken or damaged core yarns
  • Weld splatter that exposes any core yarns
  • Discoloration and brittle or stiff areas on any part of the slings, which may mean chemical or other damage

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