Safety Factor 09 : The ratio of the breaking strength of a component (for example, a winch cable) to the maximum designed load or stress when used in accordance with the manufacturer's instructions
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}