Assay (H3BO3).........................................≥99.5%
Clarity................................................passes test
Solubility in ethanol..............................passes test
Insoluble matter in water.........................≤0.005%
Methanol non-volatiles (as sulfate).............≤0.05%
Chloride (CI) ........................................≤0.0005%
Sulfate (SO4) ........................................≤0.002%
Phosphate (PO4) .................................≤0.0005%
Arsenic (As) ........................................≤0.0001%
Calcium (Ca)..........................................≤0.002%
Iron (Fe) .............................................≤0.0005%
Lead (Pb) .............................................≤0.001%