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ITEM
|
USP35
|
GB1903.14-2016
|
Assay(dry basic) %
|
97.5-100.5
|
97.5-100.5
|
Loss on drying %
|
10.0-14.0
|
10.0-14.0
|
Insoluble in HCL %
|
≤
0.2
|
/
|
Fluoride ppm
|
≤
30
|
≤
30
|
Heavy metals ppm
|
≤
20
|
/
|
Lead ppm
|
≤
10
|
≤
12
|
Arsenic ppm
|
≤
3
|
≤
3
|
Color &clarity of solution
|
/
|
Pass test
|
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