Quantified Safety Requirement : A desired, predictable, and demonstrable level of safety, usually expressed as a mishap rate or probability of mishap (AFR 800-16)
American Society of Safety Engineers (ASSE) Dictionary of Terms Used in the Safety Profession. SSDC: System Safety Development Center Glossary of SSDC, Glossary - Wiley Online Library, USA 2000 (Published Online 2005). http://onlinelibrary.wiley.com/doi/10. 1002/0471662542. gloss/pdf, (Sfty Eng - Amer) {629}