The “Working Load Limit” (rated capacity) is the maximum load that shall be applied in direct tension
to a new and undamaged straight length of chain.

The “proof test ” (manufacturing test force) is a term designating the minimum tensile force which has been applied to a chain under a constantly increasing force in direct tension during the manufacturing process. these loads are manufacturing integrity tests and shall not be used as criteria for service and design purposes

The “Minimum Breaking Force” is the minimum force at which the chain during manufacture has been found by testing to break when a constantly increasing force is applied in direct tension. Breaking force values are not guarantees that all chain segments will endure these loads. This test is a manufacturer’s attribute acceptance test and shall not be used as a criterion for service or design purposes.

The process of lifting that would elevate a freely suspended load to such a position that dropping the load would present a possibility of bodily injury or property damage.

Any static or dynamic load in exces of “wokring load limit”

Every link of chain shall be tested to at least the proof test load prescribed and for the appropriate size and type chain. when so tested, the chain shall with stand this load without the loss of chain intergrity. links or chain sgements not with standing the load shall be removed.

The dimensional requirements of the various chains sizes deginations are given in tables. The inside length dimension can be measured either byindividual link by measuring the span of 100 links and dividing by 100.

Testing and inspectiong at a manufacturer’s plant shall be performed on chain while free of paint or other coating which could conceal defects.

A certification of proof test shall be issued by the chain manufacturer to the purchaser or his representative when requested on the sales agreement.