≥1 piece |
Item
|
Standard
|
Results
|
Appearance
|
White/tan powder
|
Conforms
|
Odor
|
odorless
|
Conforms
|
Sulfate ester(SO 4 2- ),%
|
15-40%
|
18%
|
Loss on Drying
|
≤12%
|
7.21%
|
Viscosity
|
≥60 cps,1.5%sol,75a
|
105 cps
|
Total Ash
|
15-40%
|
20.53%
|
Acid insoluble ash
|
≤1
|
0.31
|
Pb
|
≤1 mg/kg
|
≤1 mg/kg
|
As
|
≤1 mg/kg
|
≤1 mg/kg
|
Cd
|
≤2 mg/kg
|
≤2 mg/kg
|
Hg
|
≤1 mg/kg
|
≤1 mg/kg
|
Coliform group (MPN/100g)
|
≤30
|
Conforms
|
Salmonella
|
negative by test
|
Conforms
|
Particle Size
|
85% min through 80 mesh
|
Conforms
|
Potassium Gel Strength
g/cm2(1.5%,20a)
|
≥500
|
510
|
Conclusion
|
Qualified
|