Risk Management of Slings
Comprehensive set of actions that reduces the risk of a problem, a failure, an accident
ASME B30.9 requires that sling users shall be trained in the selection, inspection, cautions to personnel, effects of environment, and rigging practices. Sling identification is required on all types of slings.
ASME B30.26 requires that rigging hardware users shall be trained in the selection, inspection, cautions to personnel, effects of environment, and rigging practices. All rigging hardware to be identified by manufacturer with name or trademark of manufacturer.
Working Load Limit (Wll) – the maximum mass or force which product is authorized to support particular service.
Proof Test – a test applied to a product solely to determine injurious material manufacturing defects.
Ultimate Strength – the average load or force at which the product fails or no longer supports the load.
Design Factor – an industrial term denoting a product’s theoretical reserve capability; usually computed by dividing the catalog ultimate load by the working load limit. Generally expressed as a ratio, e.g. 5 to 1.