Minimum assay (G.C.).................................................................... 99,0 %

Density at 20/4....................................................................... 0,998-1,002

MAX. IMPURITIES

Residue on ignition (as SO4)......................................................... 0,005 %

Aniline (G.C.)..................................................................................... 0,1 %

m-Toluidine (G.C.)............................................................................. 0,3 %

p-Toluidine (G.C.).............................................................................. 0,1 %

Hydrocarbons....................................................................................... p/t.

Water (H2O)..................................................................................... 0,25 %

Chloride (Cl).................................................................................. 0,001 %

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

Cd........................................................................................... 0,000005 %

Co........................................................................................... 0,000002 %

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

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

Fe.............................................................................................. 0,00001 %

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

Mn.......................................................................................... 0,000002 %

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

Pb............................................................................................. 0,00001 %

Zn............................................................................................. 0,00001 %