title: The rationale of safety assessment.
mesh_terms: D000056:Accident Prevention / Q000592:standards*; D000062:Accidents, Occupational / Q000517:prevention & control*; D005069:Evaluation Studies as Topic; D006801:Humans; D007928:Lethal Dose 50; D008452:Maximum Allowable Concentration; D009784:Occupational Diseases / Q000517:prevention & control*; D006113:United Kingdom