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Lube Oil Base Stocks.

Sl. No. Characteristics Method No. Requirement
BIS ASTM SN 70   SN150 SN400 SN500 SN850 BS150
SPHVI SP LVI LNHVI INHVI 500N HNHVI BNHVI
1 Appearance Visual Bright & Clear
2 Colour, ASTM, Max IS 1448 [P: 12] D 1500 1.0 2.5 1.5 3.0 3.5 3.0 4.0
3 Density @15 °C IS 1448 [P: 16] D1298 / D 4052 To report
4 Kinematic viscosity at 40 deg. C, cSt IS 1448 [P: 25] D 445 / D 7042 9 to 13 12-17 28-32 To report
5 Kinematic viscosity at 100 deg. C, cSt IS 1448 [P: 25] D 445 / D 7042 To report 8 to 10 10.5 to 12 14-18 29-33
6 Viscosity Index, Min IS 1448 [P: 56] D 2270 / D 7042 95 To report +95 +95 +95 +90 +90
7 Pour Point, deg. C, Max IS 1448 [P: 10] D 5949 / D 97 -6 -6 -6 -3 -3 Zero Zero
8 Flash point, COC, °C., Min IS 1448 [P: 69] D 92 160 160 210 228 232 240 290
9 Water ppm, max IS 1448 [P: 40] D95 125 ppm for all grades
10 Total Sulphur, % by mass, Max D 2622 / D 4294 To report for all grades
11 Total Acid Number, mg KOH/g, Max IS 1448 [P: 2] D 974 / D 664 0.03 0.05 0.03 0.03 0.03 0.03 0.05
12 Copper Strip Corrosion @100°C, 3 hrs IS 1448 [P: 15] D 130 1a 1a 1a 1a 1a 1a
13 MCR, % by mass, Max D 4530 0.08 0.10 0.16 0.30 0.38 0.72
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