|
项目
|
指标
|
|
镍
|
≥24%
|
|
铁
|
≤0.005%
|
|
锌
|
≤0.01%
|
|
,铜
|
≤0.005%
|
|
铅
|
≤0.005%
|
|
硝酸盐
|
≤0.01%
|
|
水不溶物
|
≤0.03%
|
