| CHARACTERISTICS | C.P. | I.W. |
| Glycerol % by weight - minimum | 99.0 | 98.0 |
| Specific Gravity at 30 C | 1.2552 | 1.2552 |
| Ash % by weight - maximum | 0.01 | 0.01 |
| Arsenic, as AS (p.p.m.) maximum | 2.00 | n.s. |
| Copper | t.p.t. | n.s. |
| Iron as Fa (p.p.m.) maximum | 0.50 | n.s. |
| Lead as Pb (p.p.m.) maximum | 1.00 | n.s. |
| Chlorides as Cl (p.p.m.) maximum | 10.00 | 60.00 |
| Sulphates as SO4 (p.p.m.) maximum | 10.00 | n.s |
| Acraldehyde & Glucose | t.p.t. | n.s. |
| Reducing substance ( AgNo3 ) | t.p.t. | n.s. |
| Acidity or Alkalinity as Na2O % by weight max. | nil | 0.01 |
| Fatty Acids & Esters as Na2O % by weight max. | 0.03 | n.s |
| Colour reading on the Lovibond Scale (5 1/4 cell ) expressed as Y + R not deeper than | 1.00 | 3.50 |