British Standard 507:1985 for Ethanol for Industrial Use
Note: This is an abridged version of the standard. For more details, reference should be made to the original standard, available from the British Standards Institute, London.
| 1. | Description: | The material shall be clear and free from matter in suspension, as assessed by visual inspection, and shall consist, apart from water, essentially of ethanol, C2H5OH. |
| 2. | Color: | The color of the material shall not exceed 15 Hazen units, when measured by the method described in BS 5339. |
| 3. | Strength: | The strength of the material, expressed as a percentage by volume of ethanol, shall be not lower than 94.7 % v/v at 20°C. The actual strength shall be specified as a percentage by volume of ethanol. (Strengths normally supplied range from 94.7 % v/v to 96.4 % v/v and from 99.5 % v/v to 99.9 % v/v). |
| 4. | Residue on evaporation: | The residue on evaporation of the material shall not exceed 0.005 % w/w (50 p.p.m) when determined by the method described in BS 4524. |
| 5. | Miscibility with water: | The material shall not show opalescence when diluted 1 + 19 by volume with water complying with the requirements of BS 3978, and tested by the method described in BS 6392 : Part 5. |
| 6. | Alkalinity or acidity: | The material shall not be alkaline to phenolphtalein and any acidity, calculated as acetic acid (CH3COOH), shall not exceed 0.005 % w/w (50 p.p.m) when determined by the method described in BS 6392 : Part 1. |
| 7. | Carbonyl compounds content: | The carbonyl compounds content of the material, calculated as acetaldehyde (CH3CHO), shall not exceed 0.10 % w/w (1000 p.p.m) when determined by the method described in BS 6392 : Part 3. |
| 8. | Permanganate time: | The permanganate time shall exceed 15 minutes when determined by the method described in BS 6392 : Part 9. |
| 9. | Methanol content: | The methanol content of the material shall not exceed 0.05 % v/v (500 p.p.m) when determined by the method described in BS 6392 : Part 6. |