各种管径规格表.docx

B.W.G
The gauge starts at the lowest gauge number of 5Ø or 00000, corresponding to the largest size of 0.500" (12.7mm) to the highest gauge number of 36, corresponding to the smallest size of 0.004" (0.102mm). Size steps between gauges range from 0.001" between high gauge numbers to 0.046" between the two lowest gauge numbers and do not correspond to a particular mathematical pattern, although for the most part the steps get smaller with increasing gauge number. Concerning wire and fine tubing, the gauge number is used to specify the outside diameter of the product, whereas for larger mechanical tubing the gauge number specifies the wall thickness independent of the overall size of the tube.
Needle
Nominal Outer Diameter
Nominal Inner Diameter
Nominal Wall Thickness
Gauge
inches
mm
tol. inches (mm)
inches
mm
tol. inches (mm)
inches
mm
tol. inches (mm)
7
0.180
4.572
±0.001 (±0.025)
0.150
3.810
±0.003 (±0.076)
0.015
0.381
±0.001 (±0.025)
8
0.165
4.191
±0.001 (±0.025)
0.135
3.429
±0.003 (±0.076)
0.015
0.381
±0.001 (±0.025)
9
0.148
3.759
±0.001 (±0.025)
0.118
2.997
±0.003 (±0.076)
0.015
0.381
±0.001 (±0.025)
10
0.134
3.404
±0.001 (±0.025)
0.106
2.692
±0.003 (±0.076)
0.014
0.356
±0.001 (±0.025)
11
0.120
3.048
±0.001 (±0.025)
0.094
2.388
±0.003 (±0.076)
0.013
0.330
±0.001 (±0.025)
12
0.109
2.769
±0.001 (±0.025)
0.085
2.159
±0.003 (±0.076)
0.012
0.305
±0.001 (±0.025)
13
0.095
2.413
±0.001 (±0.025)
0.071
1.803
±0.003 (±0.076)
0.012
0.305
±0.001 (±0.025)
14
0.083
2.108
±0.001 (±0.025)
0.063
1.600
±0.003 (±0.076)
0.01
0.254
±0.001 (±0.025)
15
0.072
1.829
±0.0005 (±0.013)
0.054
1.372
±0.0015 (±0.038)
0.009
0.229
±0.0005 (±0.013)
16
0.065
1.651
±0.0005 (±0.013)
0.047
1.194
±0.0015 (±0.038)
0.009
0.229
±0.0005 (±0.013)
17
0.058
1.473
±0.0005 (±0.013)
0.042
1.067
±0.0015 (±0.038)
0.008
0.203
±0.0005 (±0.013)
18
0.050
1.270
±0.0005 (±0.013)
0.033
0.838
±0.0015 (±0.038)
0.0085
0.216
±0.0005 (±0.013)
19
0.042
1.067
±0.0005 (±0.013)
0.027
0.686
±0.0015 (±0.038)
0.0075
0.191
±0.0005 (±0.013)
20
0.03575
0.9081
±0.00025 (±0.0064)
0.02375
0.603
±0.00075 (±0.019)
0.006
0.1524
±0.00025 (±0.0064)
21
0.03225
0.8192
±0.00025 (±0.0064)
0.02025
0.514
±0.00075 (±0.019)
0.006
0.1524
±0.00025 (±0.0064)
22
0.02825
0.7176
±0.00025 (±0.0064)
0.01625
0.413
±0.00075 (±0.019)
0.006
0.1524
±0.00025 (±0.0064)
22s
0.02825
0.7176
±0.00025 (±0.0064)
0.006
0.152
±0.00075 (±0.019)
0.0111
0.2826
±0.00025 (±0.0064)
23
0.02525
0.6414
±0.00025 (±0.0064)
0.01325
0.337
±0.00075 (±0.019)
0.006
0.1524
±0.00025 (±0.0064)
24
0.02225
0.5652
±0.00025 (±0.0064)
0.01225
0.311
±0.00075 (±0.019)
0.005
0.1270
±0.00025 (±0.0064)
25
0.02025
0.5144
±0.00025 (±0.0064)
0.01025
0.260
±0.00075 (±0.019)
0.005
0.1270
±0.00025 (±0.0064)
26
0.01825
0.4636
±0.00025 (±0.0064)
0.01025
0.260
±0.00075 (±0.019)
0.004
0.1016
±0.00025 (±0.0064)
26s
0.01865
0.4737
±0.00025 (±0.0064)
0.005
0.127
±0.00075 (±0.019)
0.0068
0.1734
±0.00025 (±0.0064)
27
0.01625
0.4128
±0.00025 (±0.0064)
0.00825
0.210
±0.00075 (±0.019)
0.004
0.1016
±0.00025 (±0.0064)
28
0.01425
0.3620
±0.00025 (±0.0064)
0.00725
0.184
±0.00075 (±0.019)
0.0035
0.0889
±0.00025 (±0.0064)
29
0.01325
0.3366
±0.00025 (±0.0064)
0.00725
0.184
±0.00075 (±0.019)
0.003
0.0762
±0.00025 (±0.0064)
30
0.01225
0.3112
±0.00025 (±0.0064)
0.00625
0.159
±0.00075 (±0.019)
0.003
0.0762
±0.00025 (±0.0064)
31
0.01025
0.2604
±0.00025 (±0.0064)
0.00525
0.133
±0.00075 (±0.019)
0.0025
0.0635
±0.00025 (±0.0064)
32
0.00925
0.2350
±0.00025 (±0.0064)
0.00425
0.108
±0.00075 (±0.019)
0.0025
0.0635
±0.00025 (±0.0064)
33
0.00825
0.2096
±0.00025 (±0.0064)
0.00425
0.108
±0.00075 (±0.019)
0.002
0.0508
±0.00025 (±0.0064)
34
0.00725
0.1842
±0.00025 (±0.0064)
0.00325
0.0826
±0.00075 (±0.019)
0.002
0.0508
±0.00025 (±0.0064)

27G 0.40mm，灰色；
26G 0.45mm，咖啡色；
25G 0.50mm，橙色；
24G 0.55mm，紫色；
23G 0.60mm，深蓝色；
22G 0.70mm，黑色；
21G 0.80mm，深绿色；
20G 0.90mm，黄色；
19G 1.00mm，乳白色；
18G 1.20mm，粉红色；
17G 1.40mm，紫红色；
16G 1.60mm，白色。

Fr

留置针

14G=2.1毫米 (约 每分钟输330 毫升) (橙色)
16G=1.7毫米 (约 每分钟输220 毫升) (灰色)
18G=1.3毫米 (约 每分钟输105 毫升) (绿色)
20G=1.1毫米 (约 每分钟输60 毫升) (粉红色)
22G=0.9毫米 (约 每分钟输35 毫升) (蓝色)
24G=0.7毫米 (约 每分钟输22毫升) (黄色)

头皮针