|
|||||||||||||||||||||||||||||||
|
規(guī)格
指標(biāo)名稱
|
一級
|
二級
|
三級
|
指定級
|
|
含量/%
|
≥99.5
|
≥99.0
|
≥98.0
|
根據(jù)客戶要求定做
|
|
澄清度試驗
|
合格
|
合格
|
合格
|
|
|
水不溶物/%
|
≤0.005
|
≤0.005
|
≤0.03
|
|
|
干燥失重/%
|
≤0.8
|
≤1.0
|
≤2.0
|
|
|
氯化物(Cl) /%
|
≤0.001
|
≤0.003
|
≤0.01
|
|
|
硫化合物(以SO4計) /%
|
≤0.002
|
≤0.003
|
≤0.01
|
|
|
總氮量(N) /%
|
≤0.001
|
≤0.001
|
≤0.01
|
|
|
磷酸鹽及硅酸鹽(以SiO2計) /%
|
≤0.004
|
≤0.005
|
≤0.02
|
|
|
鈉(Na) /%
|
≤0.02
|
≤0.05
|
≤0.10
|
|
|
鎂(Mg) /%
|
≤0.000 5
|
≤0.002
|
≤0.005
|
|
|
鋁(Al) /%
|
≤0.005
|
-
|
-
|
|
|
鈣(Ca)/%
|
≤0.002
|
≤0.002
|
≤0.02
|
|
|
鐵(Fe) /%
|
≤0.000 5
|
≤0.000 5
|
≤0.002
|
|
|
銅(Cu) /%
|
≤0.000 5
|
≤0.000 5
|
≤0.001
|
|
|
砷(As) /%
|
≤0.000 05
|
-
|
-
|
|
|
鉛(Pb) /%
|
≤0.0005
|
≤0.0005
|
0.001
|
