Assay (as Co): 46 min. 45min

Fe: 0. 01 max. 0. 05max

Cu: 0. 005 max. 0. 02max

Ni: 0. 2 max. 0. 3 max

Zn: 0. 005 max. 0. 05 max

Na: 0. 05max. 0. 5 max

Pb: 0. 005 max. 0. 06max