格林美股份有限公司-凯发k8旗舰厅

控制指标

items

单位

units

等级a

grade a

等级b

grade b

外观

appearance

带棕黄色的红色结晶

co

%

≥20.5

ni

%

≤ 0.0010

≤ 0.0020

cu

%

≤ 0.0010

≤ 0.0010

fe

%

≤ 0.0010

≤ 0.0010

mg

%

≤ 0.0010

≤ 0.0020

pb

%

≤ 0.0010

≤ 0.0010

zn

%

≤ 0.0010

≤ 0.0010

cd

%

≤ 0.0010

≤ 0.0010

mn

%

≤ 0.0010

≤ 0.0020

ca

%

≤ 0.0010

≤ 0.0020

na

%

≤ 0.0020

≤ 0.0050

cr

%

≤ 0.0010

≤ 0.0010

cl-

%

≤ 0.0030

水不溶物

water-insoluble

%

≤ 0.0100

f-

%

≤ 0.0030

油份oil

%

≤ 0.0015

磁性异物

magnetic meta impurities

ppb

≤ 100