Definition(s)
Design Safety Factor
Factor to account for a certain safety margin between the maximum allowable stress and the specified minimum yield strength of a material.
Source: API SPEC 8C, Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fifth Edition, April 2012. Global Standards
Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards