| ≥1 piece |
|
parameter
|
standard fcc/ e202
|
|
identification
|
conform standard
|
|
appearance
|
white granular powder
|
|
assay
|
99.0% 101.0%
|
|
acidity
|
d 1%
|
|
alkalinity
|
d 1%
|
|
aldehydes
|
d 0.1%
|
|
heavy metals (as pb)
|
d 10ppm
|
|
arsenic(as as)
|
d 3ppm
|
|
loss on drying
|
d 1%
|
|
mercury
|
d 1ppm
|
|
lead
|
d 5ppm
|
|
parcical size
|
18 22 mesh
|