Product Load Ratings & Documents

We are proud to say that Quarantine Restraints are the only engineer rated and certified Interior and Exterior cargo restraints for light duty pickups on the market. Understanding how Cargo Net manufactures rate and promote their product load ratings is critical to understanding the strength & safety of the product.

With a Certified Complete Assembly Working Load Limit of 1,967 lbs. and each FS Tie-Down Strap having independent Working Load Limit of 492 lbs. you can be confident that your product is the highest rated restraint on the market and will pass all implemented safety regulations on or off the work site.

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Product Load Ratings & Documents"The WLLs for Quarantine Restraints are represented by two separate calculations: The Weakest Component Break Test and the Complete Assembly Break Test. The Weakest Component Break Test measures the break strength of each component in the Quarantine Restraints system. The Complete Assembly Break Test determines the break strength of the entire product."


Cargo Net Testing Definitions to determine Product Load Ratings

The strength of cargo nets is commonly determined by two separate testing methods to determine the product load ratings:

  1. Weakest Component Break Test – Test conducted by using a calibrated hydraulic ram to break each component systematically in a controlled environment.
  2. Complete Assembly Break Test – Test conducted by stressing all components equally until failure point. For this test the break limit is determined on complete assembly.

Break Limit: This number is determined by the amount of tension, pressure or weight it takes to “break” any component or the complete assembly of the tested subject.

Safety Factor: To determine the Working Load Limit (WLL) rating of a cargo net, sling or tie down, a Safety Factor is used. This number is set by the industry and is divided into the break limit of the product. Three is the industry standard Safety Factor for rating a cargo net, sling or tie down.

Break Limit ÷ 3 = Working Load Limit (WLL)

A Safety Factor of 3 is the standard for complying to NSC 10 legislation and the industry standard for rating a cargo net, sling or tie down.

Understanding Product Load Ratings

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