Sling discard criteria

Broken wires : 5 broken wires in 1 strand or 10 broken wires in different strands in one rope lay
Wear / Metal loss: wear or scrapping of one third the original diameter of outside individual wires or 10 % reduction in rope diameter
Distortions: kinking, crushing or bird-caging. Dislocation of wires/strands from their original positions in the rope
Heat damage: metallic discoloration or loss of internal lubricant caused by heat exposure
Damaged end-attachments: cracked, worn, bent or broken fittings – bent hooks, any evidence of eye splice slippage
Metal corrosion: severe corrosion of the rope or end attachments that has caused pitting

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