Grades of glycerin

[Plant01]

Hello Everyone-

I am looking for information on glycerin/glycerol/1,2,3 Tripropanetriol with regards to the different grades but I could not find a comprehensive listing of all the recognized grades in the industry.

This is what I have found so far:
"Technical"
"Crude"
" 'quality percent'+ USP" annoted with "Kosher" and "Tallow based" or "Vegetable based"
"Natural"
"Synthetic"


Thank you,

 

[jvporcelli]

Have you searched the websites of companies such as Dow who produce glycerin. Some sites have a lot of product information.