Assay (as C3H6O3), not less than..................................................... 85,0 %

Arsenic (as As), not more than........................................................ 3 ppm

Chloride, not more than.................................................................. 0,02 %

Sulphate, not more than................................................................. 0,05 %

Citric, Oxalic, Phosphoric, or Tartaric Acids......................................... p/t.

Cyanide, not more than................................................................... 5 ppm

Iron, not more than........................................................................ 10 ppm

Residue on ignition, not more than.................................................. 0,1 %

Sugars and other reducing substances............................................... p/t.

Heavy metals (as Pb), not more than............................................ 10 ppm

Lead, not more than..................................................................... 0,5 ppm

Mercury (Hg), not more than........................................................... 1 ppm