ISO Viscosity Grade Numbers |
Viscosity Grade Ranges |
Centistokes at 40° C |
Minimum |
Maximum |
2
3
5
7
10
15
22
32
46
68
100
150
220
320
460
680
1000
1500 |
1.98
2.88
4.14
6.12
9.00
13.5
19.8
28.8
41.4
61.2
90.0
135
198
288
414
612
900
1350 |
2.42
3.52
5.06
7.48
11.0
16.5
24.2
35.2
50.6
74.8
110
165
242
352
506
748
1100
1650 |
| Note: The viscosity grade numbers for the ISO System are identical to those shown for the ASTM / BSI System (in centistokes). The viscosity of the ISO grades, however, is measured at 40° C instead of 100° F (37.8° C), which results in a slightly more viscous lubricant for each corresponding grade. |
|
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