|
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|
項目
|
指標(biāo)
|
|
鎳
|
≥24%
|
|
鐵
|
≤0.005%
|
|
鋅
|
≤0.01%
|
|
,銅
|
≤0.005%
|
|
鉛
|
≤0.005%
|
|
硝酸鹽
|
≤0.01%
|
|
水不溶物
|
≤0.03%
|
