Page 24
September 2012
PFM Portable Hydraulic Testers PFM6, PFM6BD, and PFM8
FLUID VISCOSITY CONVERSION TABLE
SAYBOLT
UNIVERSAL
SECONDS (SUS)
ISO-VG
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%
Visc
osit
y R
ange f
or F
lo
-t
ech
Test
ers and S
ensors is 25 t
o 500 SUS
Fluid visc
osit
y used t
o calibr
at
e
Test
ers and S
ensors