Purity:                                               97.5% (minimum.)

Insoluble Matter:                               0.0

Specific Gravity at ambient temperature: 1.8364 (minimum.)

Chloride (CI):                                     10.0 ppm (maximum.)

Iron (Fe):                                            48.00ppm (maximum.)

Ignition residue:                                100.0 ppm (maximum.)

Hardness as Calcium (Ca):                  0.060 ppm (maximum.)