Design Safety Factor (DSF)

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Factor to account for a certain safety margin between the maximum allowable stress and the minimum specified yield strength of the material.

Source: API SPEC 7K, Drilling and Well Servicing Equipment Upstream Segment, Fifth Edition, June 2010 (August 2010). Global Standards

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

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