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. 2013 Dec 24;13:49. doi: 10.1186/1471-2253-13-49

Table 4.

Manufacturer specified physical characteristics of catheters

    Cannula P Cannula I
18G (1.3 mm)
Length (mm)
32
32
Flow rate (ml.min-1)
95
105
20G (1.1 mm)
Length (mm)
32
32
Flow rate (ml.min-1)
65
60
22G (0.9 mm) Length (mm)
25
25
Flow rate (ml.min-1) 36 35