The Gauge scale (Gauge, abbreviation G) is usually used to measure the outer diameter of tubular (injection, biopsy) needles.
Smaller gage numbers correspond to larger outer diameters.
Size Matching Table
| The size Gauge (g) | Rated external needle diameter (mm) | Color coding according to ISO 6009 [1] |
|---|---|---|
| thirty | 0.3 | Yellow |
| 29th | 0.33 | Red |
| 28 | 0.36 | Azure |
| 27 | 0.4 | Light gray |
| 26 | 0.45 | Brown |
| 25 | 0.53 | Orange |
| 24 | 0.55 | Light purple |
| 23 | 0.6 | Navy blue |
| 22 | 0.7 | The black |
| 21 | 0.8 | Dark green |
| twenty | 0.9 | Yellow |
| 19 | 1,1 | Cream |
| eighteen | 1.25 | Pink |
| 17 | 1,5 | Scarlet |
| 16 | 1.65 | White |
| fifteen | 1.8 | Blue gray |
| fourteen | 2.1 | Pale green |
| 13 | 2.40 | Purple |
| 12 | 2.70 | Blue |
| eleven | 3.00 | Yellow green |
| 10 | 3.40 | Olive brown |