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SPECS USP  USP23 ULTRA USP23 USP32/40 ULTRA USP32/40
Color by Gardner ≤8 ≤8 ≤8 ≤9
odor ccharacteristic natural odor ultra low odor Odorless Odorless
   
Iodine Value, gl2/100g 18-36 18-36 18-36 18-36
Acid value, mg KOH/g ≤1 ≤1 ≤1 ≤1
Loss on drying, % ≤0.25 ≤0.25 ≤0.25 ≤0.25
Water-soluble acids & alkalis PASS PASS PASS PASS
Water-soluble oxidizable substance PASS PASS PASS PASS
Paraffin, % ≤1 ≤1 ≤1 ≤1
Alkalinity PASS PASS PASS PASS
Ammonia ≤150ppm ≤150ppm ≤150ppm ≤150ppm
Chlorine PASS PASS PASS PASS
Residue on ignition, % ≤0.1 ≤0.1 ≤0.1 ≤0.1
Peroxide value, meq O2/kg -- -- -- ≤20
Water absorptivity, % -- -- -- ≥200
Melting point, ℃ 38-44 38-44 38-44 38-44
Identification PASS PASS PASS PASS
Foreign Substances, ppm (Total)  --  -- ≤40 ≤40
Foreign Substances, ppm (Individual)  --  -- ≤10 ≤10


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