Norma Brasiliera Registrata (NBR)
Standard NBR 10892 (January 1990)
Hydrous alcohol for use in the alco-chemicals industry
Characteristics |
Limits |
NBR Method |
|
1. | Appearance |
clear and free of suspended matter |
- |
2. | Color, on platinum-cobalt scale, maximum |
10 |
# 5769 |
3. | Specific gravity at 20°C in kg/m3, maximum |
807.5 |
# 5992 |
4. | Alcohol content, in °INPM, minimum |
93.8 |
# 5992 |
5. | Alkalinity |
negative |
# 9866 |
6. | Acids, as acetic acid, in mg/li, maximum |
20 (p.p.m) |
# 9866 |
7. | Miscibility in water |
complete |
# 5835 |
8. | Residue on evaporation in mg/li, maximum |
50 (p.p.m) |
# 8911 |
9. | Permanganate time, in minutes, minimum |
10 |
# 5824 |
10. | Sulphur, in mg/kg, maximum | 0.5 (p.p.m) | # 9867 |
11. | Formaldehyde, in mg/kg, maximum | 65 (p.p.m) | # 9868 |
12. | Acetaldehyde, in mg/kg, maximum | 75 (p.p.m) | # 10260 |
13. | Ethyl acetate, in mg/kg, maximum | 100 (p.p.m) | # 10260 |
14. | Methanol, in mg/kg, maximum | 65 (p.p.m) | # 10260 |
15. | Higher alcohols (including propanol), in mg/kg, maximum | 75 (p.p.m) | # 10260 |
16. | Benzene, in mg/kg, maximum | 1.0 (p.p.m) | # 10649 |
Note: This data has been extracted and translated from the original standard in Portuguese. For more details and authenticity, reference should be made to the original standard.