| Tests | Specifications |
| Description | Hygroscopic, white to off-white, free flowing powder, granule or flake. It is tasteless and odourless, or might have a slight odor of acetic acid. |
| Solubility | Practically insoluble in water, alcohols, and chlorinated and non-chlorinated hydrocarbons |
| Identification by IR absorbtion | IR sample should be concordant with working reference standard |
| Viscosity (CPS) as 25⁰C | 45 to 90 CPS |
| Loss on Drying (at 25⁰C) | NMT 5.00% |
| Free acid | NMT 3.00% |
| Sulphated ash | NMT 0.1% |
| Heavy Metals | NMT 0.001% |
| Phthalyl content | 30 to 36% |
| Acetyl content | 21.5% to 26% |