I have some Fireline, and it says "6 lb. test" on it. What does this mean?
Test and/or tensile strength is a measure of the material's ability to withstand stress, expressed as the greatest weight stress that the material can stand without breaking. In the testing process, weights are hung from the thread to calculate test/tensile strength as well as other tensile properties.
FireLine® is a gel-spun, polyethylene braided thread recognized as the strongest fiber, per diameter, ever created. The advanced technology used to make FireLine interknitted thread, makes it ultra-thin in diameter but three times stronger than regular monofilament. For more information on testing processes, see the ''Independent Lab Report'' listed below, comparing three brands of coated jewelry wire.