Page 24 September 2012
PFM Portable Hydraulic Testers PFM6, PFM6BD, and PFM8
FLUID VISCOSITY CONVERSION TABLE
SAYBOLT
UNIVERSAL
SECONDS SUS
ISOVG CENTISTOKE CENTIPOISE¹ TYPICAL BRANDS/LIQUIDS AT 100 °F
31 2 1.0 0.876 Water
35 3 2.5 2.19
-40 5 4.2 3.68
45 5/7 5.9 5.17
50 7 7.5 6.57 Kerosene
55 7/10 8.8 7.71 Atlantic Richfield/Duro 55 Hydraulic Oil
60 10 10.5 9.20 Monsanto/Skydrol - 500 A
70 10/15 13.2 11.56 Mobil/Aero HFA Hydraulic Oil
80 15 15.7 13.75 No. 4 Fuel Oil
90 22 18.2 15.94 Stauffer Chemical/Fyrquel 90
100 22 20.6 18.05 Conoco/Syncon Synthetic AW Hydraulic Oil
150 32 32.0 28.03 Mobil/DTE 24 Hydraulic Oil
200 46 43.2 37.84 Citco/Glycol FR-40XD (Oil in Water)
300 68 65.0 56.94 SAE 20 Crankcase Oil
400 68/100 86.0 75.34 Sunoco/Sunvis 41 Hydraulic Oil
500 100 108 94.61 SAE 30 Crankcase Oil
750 150 162 141.91 SAE 40 Crankcase Oil
1000 220 216 189.22 Mobil/Paper Machine Oil - Type K
1500 320 323 282.95 SAE 50 Crankcase Oil
2000 460 431 377.56 Amoco/American Industrial Oil - No. 460
3000 680 648 567.65 SAE 140 Gear Oil
4000 1000 862 755.11 SAE 250 Gear Oil
¹ CentiPoise are given for oil of 0.876 specific gravity. Relationship: CentiStokes × Specific Gravity = CentiPoise
Table4: Viscosity Conversion
±1% Viscosity Range for Flo-tech
Testers and Sensors is 25 to 500 SUS
Fluid viscosity used to calibrate
Testers and Sensors