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Products
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Executive standard:GB/T534-2014 |
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Item |
Index |
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|
Concentrated sulfuric acid |
Fuming sulphuric acid |
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|
Superior product |
First-class product |
Qualified product |
Superior product |
First-class product |
Qualified product |
|
|
Mass fraction of sulfuric acid /%≥ |
92.5 or 98.0 |
92.5 or 98.0 |
92.5 or 98.0 |
----- |
----- |
----- |
|
Mass fraction of free sulfur trioxide/%≥ |
----- |
----- |
----- |
20.0 or25.0 |
20.0 or 25.0 |
20.0 25.0 |
|
Mass fraction of ash content/%≤ |
0.02 |
0.03 |
0.10 |
0.02 |
0.03 |
0.10 |
|
Mass fraction of iron/%≤ |
0.005 |
0.010 |
----- |
0.005 |
0.010 |
0.030 |
|
Mass fraction of arsenic /%≤ |
0.0001 |
0.001 |
0.01 |
0.0001 |
0.0001 |
----- |
|
Mass fraction of mercury/%≤ |
0.001 |
0.01 |
----- |
----- |
----- |
----- |
|
Mass fraction of lead/%≤ |
0.005 |
0.02 |
----- |
0.005 |
----- |
----- |
|
Transparency/mm≥ |
80 |
50 |
----- |
----- |
----- |
----- |
|
Color/mL≤ |
|
|
----- |
----- |
----- |
----- |
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"----" represents this item in technical requirements of this product is not exit. |
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