However i was researching this for a reference to site hmm and to my surprise the following is acceptable: Deltoid: typical injection 0.5ml but up to 2ml, Dorsogluteal: Typical injection 1 to 4 ml, Ventrogluteal:1 to 4 ml, Vastus lateralis: 1 to 4 ml ( 1 to 3 ml for infants)