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 |