Indian Standard 321 of 1964
Requirements for Absolute (Anhydrous) Alcohol
Special Grade
|
Grade 1
|
Grade 2
|
Test method |
||
1. | Ethanol content, percent by volume at 15.6°C: |
99.50
|
99.50
|
99.50
|
C**
|
2. | Miscibility with water: |
Miscible
|
Miscible
|
Miscible
|
D
|
3. | Alkalinity: |
Nil
|
Nil
|
Nil
|
E
|
4. | Acidity, as acetic acid, percent by weight, maximum: |
0.006
(60 ppm) |
0.006
(60 ppm) |
0.006
(60 ppm) |
E
|
5. | Residue on evaporation, percent by weight, maximum: |
0.005
(50 ppm) |
0.005
(50 ppm) |
0.005
(50 ppm) |
F
|
6. | Aldehydes, as acetaldehyde, g/100 ml, maximum: |
0.10
(1000 ppm) |
0.006
(60 ppm) |
0.10
(1000 ppm) |
G
|
7. | Esters, as ethyl acetate, g/100 ml, maximum: |
0.02
(200 ppm) |
-
|
-
|
H
|
8. | Copper, as Cu, g/100 ml, maximum: |
-
|
0.0004
(4 ppm) |
-
|
J
|
9. | Lead, as Pb, g/100 ml, maximum: |
-
|
0.0001
(1 ppm) |
-
|
K
|
10. | Methyl alcohol: |
-
|
To satisfy
test.
|
-
|
L
|
11. | Fusel oil: |
-
|
To satisfy
test.
|
-
|
M
|
12. | Ketones, isoproply alcohol and tertiary butyl alcohol: |
-
|
To satisfy
test.
|
-
|
A***
|
13. | Total sulphur and sulphur compounds, as S, percent by weight, maximum: |
0.001
(10 ppm) |
-
|
-
|
P
|
14. | Sulphur dioxide, as SO2, percent by weight, maximum: |
0.0005
(0.5 ppm) |
-
|
-
|
Q
|
* For test methods, reference should be made to the appendix of the Indian Standard 323 of 1959 for rectified spirit, (with the exception of item marked ***, as noted below).
** Test method C should be used, with the modification that Table II in Apendix B of this standard should be used in place of Table IV of Indian Standard 323 of 1959.
*** Reference should be made to test method A in the Appendix of this standard.
Please note: The figures in parentheses for parts per million (ppm) do not appear in the original standard, but have been added here to facilitate comparison with standards of other countries.