Links:
[1] https://ehs.research.uiowa.edu/packing-instructions-620-category-infectious-substances
[2] https://ehs.research.uiowa.edu/packing-instructions-650-biological-substance-category-b
[3] https://ehs.research.uiowa.edu/node/215
[4] https://ehs.research.uiowa.edu/packing-instructions-triple-packaging