|
規(guī)格
指標名稱
|
一級
|
二級
|
三級
|
指定級
|
|
含量/%
|
≥99.8
|
≥99.8
|
≥99.8
|
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
|
≤0.01
|
≤0.02
|
|
|
氯化物和氯酸鹽(以Cl計) /%
|
≤0.001
|
≤0.002
|
≤0.005
|
|
|
硫化合物(以SO4計) /%
|
≤0.002
|
≤0.005
|
≤0.01
|
|
|
氮化合物(以N計) /%
|
≤0.000 5
|
≤0.001
|
≤0.002
|
|
|
磷酸鹽(PO4) /%
|
≤0.001
|
≤0.002
|
≤0.005
|
|
|
硅酸鹽(SiO3) /%
|
≤0.001
|
≤0.005
|
≤0.01
|
|
|
鎂(Mg) /%
|
≤0.002
|
≤0.003
|
≤0.005
|
|
|
鉀(K) /%
|
≤0.005
|
≤0.01
|
≤0.02
|
|
|
鋁(Al) /%
|
≤0.005
|
≤0.01
|
≤0.02
|
|
|
鈣(Ca)/%
|
≤0.005
|
≤0.007
|
≤0.01
|
|
|
鐵(Fe) /%
|
≤0.000 5
|
≤0.001
|
≤0.002
|
|
|
重金屬(以Pb計) /%
|
≤0.000 5
|
≤0.001
|
≤0.002
|
|
|
還原碘物質(zhì)(以HCOOH計) /%
|
≤0.005
|
-
|
-
|
供應(yīng)優(yōu)質(zhì)試劑級碳酸氫鈉