Per ANSI Z359.14 testing, the units must have an average arrest force of 900 lbs. or less in order to meet ANSI guidelines. Independent testing of Safewaze FS-FSP1230 and FS-FSP1250 series SRLs indicated a maximum average arrest force of 2.97 kN or 667.68 lbs. of force, falling well below the 900 lb. limit.