Glycerine
Sr. Tests Cp USP min 99.5% IP
1 Assay Glycerol % min 98 99.5 (anhydrous basis) 98-101
2 Specific Gravity 1.2552 at 30°C 98-101
2 Specific Gravity 1.2552 at 30°C min 1.249 at 25°C min
3 Ash, %max 0.01 0.01 0.01
4 APHA Colour, max 20
5 Arsenic, ppm max 2
6 Copper, ppm Passes
7 Heavy Metals as Lead, ppm max 5 5
8 Iron, ppm max 0.5 4
9 Lead, ppm max (as Pb) 1
10 Chlorides, ppm max 10 10 25
11 Sulphates, ppm max 10 20 30
12 Alkalinity / Acidity (as Na2O) Nil Passes
13 Total Alkali
14 FA & Ester % as Na2O, max 0.03 0.031 0.025
15 Acraldehyde and Glucose Passes
16 Aid & Reducing Sub ppm, ppm, max Passes 5
17 Colour Lovibond 51/4″ cell (Y+R) 1.0 max