Assay (Acidim.).............................................................................63-65 %

Density at 20/4..................................................................................≥1,39

MAX. IMPURITIES

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

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

Reducing substances to KMnO4.......................................................... p/t.

Chloride (Cl).............................................................................. 0,00005 %

Phosphate (PO4)......................................................................... 0,0001 %

Nitrite (NO2)................................................................................. 0,0005 %

Sulphate (SO4)............................................................................ 0,0002 %

Heavy metals (as Pb)................................................................ 0,00002 %

Hg..........................................................................................0,0000005%

Metals by ICP [mg/Kg (ppm)]

Ag.........................0,02

Al..........................0,05

As.........................0,01

Au...........................0,1

B...........................0,05

Ba.........................0,02

Be.........................0,02

Bi..........................0,05

Ca...........................0,5

Cd.........................0,01

Co.........................0,02

Cr............................0,1

Cu.........................0,01

Fe............................0,2

Ga.........................0,05

Ge.........................0,02

In...........................0,05

K.............................0,1

Li...........................0,02

Mg..........................0,1

Mn........................0,01

Mo........................0,02

Na...........................0,5

Ni..........................0,05

Pb.........................0,02

Pt............................0,1

Sb.........................0,02

Si............................0,1

Sn.........................0,05

Sr..........................0,02

Ti...........................0,05

Tl...........................0,02

V...........................0,02

Zn.........................0,05

Zr..........................0,05