Nickel Oxide 

	Green			Black
	Premium Grade	First Grade	Second Grade	Premium Grade	First Grade	Second Grade
Ni%≥	77-78	76	75	75	74	72
Co%≤	0.10	0.10	0.20	0.12	0.20	0.50
Fe%≤	0.05	0.20	0.40	0.60	0.80	1.00
Cu%≤	0.02	0.10	0.15	0.15	0.10	-
Zn%≤	0.02	0.10	0.15	0.15	0.10
S%≤	0.05	0.10	0.20	0.30	0.50
HCl Insoluble % ≤	0.1	0.30	0.40	0.40	0.60
Ca,Mg,Mg Total %≤	0.50	1.30	1.50	1.30	___
Sieve	320	320	250	250	250	250
Packing:25kg/50kg in sealed iron drums with plastic bag inside.