|
StandardGB/T1613-93
|
Value
|
||||
|
Item
|
Chemical purity
|
Premium grade
|
first grade
|
Salable product
|
|
|
BaNO3)2(dry),%
|
min
|
99.0
|
99.3
|
99.0
|
98.0
|
|
Moisture,%
|
max
|
----
|
0.05
|
0.10
|
0.10
|
|
Insoluble substance in water,%
|
max
|
0.02
|
0.05
|
0.10
|
0.15
|
|
Chloride(BaCl),%
|
max
|
0.001
|
0.05
|
----
|
----
|
|
Fe,%
|
max
|
0.001
|
0.001
|
0.003
|
0.005
|
|
Pb,%
|
max
|
0.001
|
----
|
----
|
----
|
|
PH
|
5.0-7.0
|
5.0-8.0
|
----
|
----
|
|
