D100 Separation and API Screen Number

D100 Separation (μm)

API Screen Number

> 3075 to 3675

API 6

> 2580 to 3075

API 7

> 2180 to 2580

API 8

> 1850 to 2180

API 10

> 1550 to 1850

API 12

> 1290 to 1550

API 14

> 1090 to 1290

API 16

> 925 to 1090

API 18

> 780 to 925

API 20

> 655 to 780

API 25

> 550 to 655

API 30

> 462.5 to 550

API 35

> 390 to 462.5

API 40

> 327.5 to 390

API 45

> 275 to 327.5

API 50

> 231 to 275

API 60

> 196 to 231

API 70

> 165 to 196

API 80

> 137.5 to 165

API 100

> 116.5 to 137.5

API 120

> 98.0 to 116.5

API 140

> 82.5 to 98.0

API 170

> 69.0 to 82.5

API 200

> 58 to 69

API 230

> 49 to 58

API 270

> 41.5 to 49

API 325

> 35 to 41.5

API 400

> 28.5 to 35

API 450

> 22.5 to 28.5

API 500

> 18.5 to 22.5

API 635