Specifications:
BR-1 (For beverage use):
1) Loss on drying (60min, 140oC vacuum): ≤6%
2) Soluble components: ≤1.5%
3) Monomers: ≤0.1%
4) PH of 1% solution: 5.0 - 11.0
5) Heavy metals:
a) Arsenic: 3ppm
b) Lead: ≤10ppm
c) Zinc: ≤25ppm
d) Copper + Zinc: ≤50ppm
e) Nitrogen: 11.0-12.8%
f) Sulfate ash: ≤0.4%

PH-J (For pharmaceutical use):
1) Loss on drying (60min, 140oC vacuum): ≤5%
2) Soluble components: ≤1.5%
3) Monomers: ≤0.1%
4) PH of 1% solution: 5.0 - 8.0
5) Heavy metals: ≤10ppm
6) Nitrogen: 12.0 - 12.8%
7) Sulfate ash: ≤0.2%