Rectified Spirit.
Polish Standard PN-74/A-79522
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GRADES
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Technical
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Normal
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Excellent
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Luxury
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| 1. | Alcohol strength at 20°C, % v/v minimum: |
95.0
|
96.0
|
96.5
|
96.5
|
| 2. | Aldehydes, as acetaldehyde, g/L 100% ethanol, maximum: |
no standard
|
0.005
(5 ppm) |
0.002
(2 ppm) |
0.001
(1 ppm) |
| 3. | Fusel oils, as amyl alcohol, g/L 100% ethanol, maximum: |
0.1
(100 ppm) |
0.005
(5 ppm) |
0.002
(2 ppm) |
0.001
(1 ppm) |
| 4. | Methanol, g/100ml 100% ethanol, maximum: |
0.1
(1000 ppm) |
0.1
(1000 ppm) |
0.05
(500 ppm) |
0.03
(300 ppm) |
| 5. | Lang test, decolorization of potassium permanganate, in minutes, minimum: |
no standard
|
20
|
20
|
20
|
| 6. | Total acidity, as acetic acid, g/L 100% ethanol, maximum: |
0.02
(20 ppm) |
0.02
(20 ppm) |
0.015
(15 ppm) |
0.015
(15 ppm) |
| 7. | Esters, as ethyl acetate, g/L 100% ethanol, maximum: |
0.07
(70 ppm) |
0.05
(50 ppm) |
0.03
(30 ppm) |
0.03
(30 ppm) |
| 8. | Dry extract, g/L 100% ethanol, maximum: |
0.01
(10 ppm) |
0.01
(10 ppm) |
0.01
(10 ppm) |
0.01
(10 ppm) |
| 9. | Volatile bases containing nitrogen, g/L 100% ethanol, maximum: |
0.001
(1 ppm) |
0.001
(1 ppm) |
0.001
(1 ppm) |
0.001
(1 ppm) |
| 10. | Furfural: |
Not detectable
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Not detectable
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Not detectable
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Not detectable
|