What Are The Different Sizes Of Needles?
What Are The Different Sizes Of Needles? Gauge Number Needle Nominal O.D. (mm) Needle Dead Volume (μL/25.4 mm) 31 gauge needle 0.261 0.353 μL/25.4 mm 30 gauge needle 0.312 0.504 μL/25.4 mm 29 gauge needle 0.337 0.675 μL/25.4mm 28 gauge needle 0.362 0.675 μL/25.4 mm What size needle is used for insulin? The board recommends