Test Procedure For Complete Twin-Path® Sling Products
In the proof testing, the pins should be 26 mm (1 inch) diameter or larger.
The slings should be pulled to twice their working load limit. Slings will be held at the proof test limit for a minimum of 15 seconds and then the tension may be released.
Testing machine is required to test Twin-Path® sling products and load yarn to check if they meets or exceeds the standards as described in ASME E-4.
The break testing of the sling should be conducted and recorded according to the aforementioned rules. All the diameter of pin should equal to the half of nominal sling width or even larger.
Proof testing is mandatory for each newly manufactured and repaired Twin-Path® sling.
After the sling is proof tested, the tell-tails should then be trimmed to length prior to shipment.
Repaired slings or fittings should be proof tested before they are returned to service.
These recommended standard specifications are the guide to users, industry and government to insure the proper use, maintenance and inspection of Twin-Path® sling products.