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SPECIFICATION FOR BENZENE
Sr. No.
CHARACTERISTICS
Test Method
GRADE 1
GRADE 2
1
Colour
5 of IS : 82-1973
Not darker than a freshly prepared solution of 0.8 ml of 0.1 N potassium dichromate and 12 ml of 0.1 N
cobalt sulphate made
up to 1000 ml with water
2
Relative Density at
15 deg /15 0C
6.3.3 of IS 82-1973
0.877 to 0.884
0.872 to 0.882
27 deg/27 0C
-
0.866 to 0.873
0.861 to 0.871
3
Range on evaporation mg/100 ml max.
8 of IS : 82 - 1973
5
5
4
Total sulphur, percent by mass, max.
-
0.015
0.1
5
Hydrogen sulphide
-
To pass test
0.1
6
Mercaptans
P-19 of IS:1448
Shall give no positive reaction
Shall give no positive reaction
7
Thiophene (as sulphur), percent by mass,
max.
-
0.005
-
8
Crystallizing point, min.
-
5.2 deg C
-
| Sr. No. | CHARACTERISTICS | Test Method | GRADE 1 | GRADE 2 |
| 1 | Colour | 5 of IS : 82-1973 | Not darker than a freshly prepared solution of 0.8 ml of 0.1 N potassium dichromate and 12 ml of 0.1 N cobalt sulphate made up to 1000 ml with water | |
|
2 |
Relative Density at | |||
| 15 deg /15 0C | 6.3.3 of IS 82-1973 | 0.877 to 0.884 | 0.872 to 0.882 | |
| 27 deg/27 0C | - | 0.866 to 0.873 | 0.861 to 0.871 | |
|
3 |
Range on evaporation mg/100 ml max. | 8 of IS : 82 - 1973 | 5 | 5 |
|
4 |
Total sulphur, percent by mass, max. | - | 0.015 | 0.1 |
|
5 |
Hydrogen sulphide | - | To pass test | 0.1 |
|
6 |
Mercaptans | P-19 of IS:1448 | Shall give no positive reaction | Shall give no positive reaction |
|
7 |
Thiophene (as sulphur), percent by mass, max. | - | 0.005 | - |
|
8 |
Crystallizing point, min. | - | 5.2 deg C | - |