Size

Nominal Constant

Viscosity Range as per BS/IP/CF

Viscosity Range as per ASTM D 446

25

0.002

0.4-1.6

0.5-2

50

0.004

0.8-3.2

0.8-4

75

0.008

NIL

1.6-8

100

0.015

3-12

3-15

150

0.035

7-28

7-35

200

0.1

20-80

20-100

300

0.25

50-200

50-250

350

0.5

100-400

100-500

400

1.2

240-960

240-1200

450

2.5

500-2000

500-2500

500

8

1600-6400

1600-8000

600

20

4000-16000

4000-20000