Base oil SN 150 -300 -500 are known as a light grade base oil at the lower end of the specifications for Grade I light base oils. It is mostly used in lubricant and lubricant additives production. It is a Group I base oil which has undergone solvent refining processes
Base Oil SN 150 Virgin Specifications :-
 
Appearence
Visual
B& C
Color
ASTM D 1500
1.5
Specific Density @ 15 C
ASTM D 4052
0.8733
Kinematic Viscosity @ 40 C
ASTM D 445
21.28
Kinematic Viscosity @ 100 C
ASTM D 445
4.26
Viscosity Index
ASTM D 2270
103
Flash Point 
Pour Point
ASTM D 92
ASTM D 97
202
-3 
 
 
Base Oil SN 500 Specifications :-
 
Appearence
Visual
B& C
Color
ASTM D 1500
2
Specific Density @ 15 C
ASTM D 4052
0.893
Kinematic Viscosity @ 40 C
ASTM D 445
106.73
Kinematic Viscosity @ 100 C
ASTM D 445
11.22
Viscosity Index
ASTM D 2270
89
Flash Point 
Pour Point
ASTM D 92
ASTM D 97
252
-3 
 
 
Base Oil SN 500 Group 2 Specifications :-
 
Appearence
Visual
B& C
Color
ASTM D 1500
0.5
API Gravity @ 60 F
ASTM D 4052
30.4
Kinematic Viscosity @ 40 C
ASTM D 445
93.67
Kinematic Viscosity @ 100 C
ASTM D 445
11.09
Viscosity Index
ASTM D 2270
104
Flash Point 
Pour Point
ASTM D 92
ASTM D 97
260
-12