Minimum assay (Acidim.)............................................................... 25,0 %

Density at 15/4..................................................................................≥1,12

MAX. IMPURITIES

APHA colour...........................................................................................10

Residue on ignition (as SO4)....................................................... 0,0005 %

Chlorine (Cl)................................................................................ 0,0001 %

Bromide (Br)................................................................................. 0,005 %

Sulphate (SO4)............................................................................ 0,0001 %

Sulphite (SO3)............................................................................. 0,0001 %

Ammonium (NH4)........................................................................ 0,0003 %

Heavy metals (as Pb).................................................................. 0,0001 %

Al.............................................................................................. 0,00001 %

As........................................................................................... 0,000001 %

Ba........................................................................................... 0,000005 %

Be........................................................................................... 0,000002 %

Ca............................................................................................. 0,00005 %

Cd........................................................................................... 0,000001 %

Co........................................................................................... 0,000001 %

Cr............................................................................................ 0,000002 %

Cu........................................................................................... 0,000002 %

Fe.............................................................................................. 0,00002 %

K............................................................................................... 0,00001 %

Li............................................................................................. 0,000002 %

Mg............................................................................................ 0,00001 %

Mn.......................................................................................... 0,000001 %

Na............................................................................................. 0,00005 %

Ni............................................................................................ 0,000002 %

Pb........................................................................................... 0,000002 %

Sr............................................................................................ 0,000002 %

Zn........................................................................................... 0,000005 %