Breadcrumb Home Permissible Select Toxin Amounts and Biologically Derived Toxins with LD50 ≤ 100µg/kg Permissible Select Toxin Amounts and Biologically Derived Toxins with LD50 ≤ 100µg/kg Resource Type Link Resource Link Permissible Select Toxin Amounts and Biologically Derived Toxins with LD50 ≤ 100µg/kg Resource Category Procedures, Resource Topic Biosafety and Biosecurity, Associated Page Select Agents and Toxins,