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Refined Castor Oil (Pale Pressed Grade – P.P.G)

Sr. No. Specification / Charateristics Test Method Parameters
1 Free Fatty Acid (mgKoH / gm) (As Ricinoleic) Aocs 13e.92 1.0 % Max
2 Acid Value % (mgKoH / gm) Aocs CaSa – 40 2.0% Max
3 Moisture & Volatiles % Aocs Ca 2e - 25 0.25 % Max
4 Colour on Lovilond
1” Cell (Y+5R) - -
5 ¼” Cell (Y+5R) Aocs Cc 13E – 92 10.0 Yellow, 1.0 Red Max
Colour Gardner -
Iodine Colour
5 Iodine Value (By Wiss, gI 2 / 100g ) Aocs cd 1.25 82 – 90
6 Saponification Value (mgKoH / gm) Aocs cd 3.25 177 – 185
7 Unsaponifiable Matter 0.8 % Max
8 Hydroxyl Value mgKoH / gm Aocs cd 13-60 160 Min.
9 Density at 30ºC Aocs 10C – 95
10 Specific gravity 15ºC Aocs Cc-10G-25 0.952 – 0.965
11 Viscosity at 20ºC Pas - -
Viscosity at 25ºC Pas - -
Viscosity Gardner Holdt - U – V
12 Refractive Index at 20ºC Aocs cc 7.25 1.477 – 1.481
13 Peroxide Value Aocs cd 8.53 5.0 Max
14 Optical Rotation - +3.5º to +6.0º
15 Solubility - -
16 Ricinoleic Acid Content GC 85% Min
17 Insoluble Impurities Aocs Ca 3a – 36 0.02% Max