Content(as NaHCO₃):99.0%-100.5%

  Arsenic(as As):0.0001% max

  Heavy metals(as Pb):0.0005% max

  Loss on drying:0.20% max

  PH: 8.3-8.7 % max

  Ammonium salt:passed test.

  Clarity and color of solution:passed test.