Alcohol Specifications

United Kingdom

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 20C. 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.

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