Assay (C6H7KO2) (after drying)................................................99,0-101,0%

Acidity (as Sorbic Acid, not more than)............................................ 1,0 %

Alkalinity (as K2CO3, not more than)................................................. 1,0 %

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

Lead, not more than........................................................................ 2 ppm

Loss on drying, not more than......................................................... 1,0 %

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

Aldehydes (as Formaldehyde), not more than.................................. 0,1 %

Volatile matter, not more than........................................................... 1,0 %

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