|
Inspection project |
Measurement unit or the symbol |
Grade of the products |
|
Excellent grade |
Chemistry |
Analyse |
|
Reduce the potassium permanganate material (count
with O) |
% |
0.00025 |
0.0006 |
0.00025 |
|
Methyl alcohol |
% |
0.02 |
0.2 |
0.05 |
|
Alkali degree (count with OH) |
mmol/100g |
0.005 |
0.03 |
0.01 |
|
Density (20 degrees Centigrade) |
g/ml |
0.789-0.791 |
0.789-0.791 |
0.789-0.791 |
|
Moisture content |
%(v/v) |
0.2 |
0.5 |
0.3 |
|
Acidity |
mmol/100g |
0.02 |
0.1 |
0.04 |
|
Carbonyl chemical compound (count with CO) |
% |
0.003 |
0.005 |
0.003 |
|
Appearance |
|
Limpid and transparent |
Limpid and transparent |
Limpid and transparent |
|
Ethanol |
%(v/v) |
99.8 |
99.5 |
99.7 |
|
Different propyl alcohol |
% |
0.003 |
0.05 |
0.01 |
|
Exchange the carbonization material |
% |
Qualified |
Qualified |
Qualified |
|
Mix testing with water |
|
Qualified |
Qualified |
Qualified |
|
Evaporate the residue |
% |
0.0005 |
0.001 |
0.001 |
