Annex 2 – Ethanol Specifications
- The ethanol must contain denaturant and the type and volume of the denaturant must be declared.
- The ethanol must contain a corrosion inhibitor and the type and dose rate of the corrosion inhibitor must be declared.
- The ethanol must conform to the parameters set out in the following table:
| Property |
Unit |
Minimum |
Maximum |
Test Method |
| Ethanol |
% volume |
95.6 |
|
ASTM D5501 |
| Methanol |
% volume |
|
0.5 |
ASTM D5501 |
| Denaturant1 |
% volume |
1 |
1.5 |
ASTM D5501 |
| Water content |
% volume |
|
1.0 |
ASTM E203 |
| Solvent-washed gum |
mg/100 ml |
|
5 |
ASTM D381 |
| Inorganic Chloride content |
mg/L |
|
32 |
ASTM D512-81 (1985), Method C (as modified in ASTM D4806) |
| Copper content |
mg/kg |
|
0.1 |
ASTM D1688A (as modified in ASTM D4806) |
| Sulphate |
mg/kg |
|
4 |
ASTM D7318, ASTM D7319, and ASTM D7328 |
| Sulphur |
mg/kg |
|
30 |
IP 497 or ASTM D5453 |
| Acidity (as acetic acid CH3COOH) |
% mass |
|
0.007 |
ASTM D1613 |
| pHe |
|
6.5 |
9.0 |
ASTM D6423 |
| Appearance |
|
Clear and bright |
ASTM D4806 |
1. The denaturant contained in ethanol must be unleaded regular grade or premium grade petrol with the following minimum characteristics:
a. End point - 210°C maximum
b. Sulphur - 50 mg/kg maximum
c. Clear and bright
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