附1中國(guó)***電子***超純水規(guī)格 GB/T11446.1-1997
| 電阻率 25℃ MΩ*cm | 硅 ≤μg/L | 銅 ≤μg/L | 鋅 ≤μg/L | 鎳 ≤μg/L | 鈉 ≤μg/L | 鉀 ≤μg/L | 氯 ≤μg/L | >1μm顆粒 ≤個(gè)/ml | 細(xì)菌 ≤個(gè)/ml | 硝酸根 ≤g/L | 磷酸根 ≤μg/L | 硫酸根 ≤μg/L | TOC ≤μg/L | EW-I | ≥18* | 2 | 0.2 | 0.2 | 0.1 | 0.5 | 0.5 | 1 | 0.1 | 0.01 | 1 | 1 | 1 | 20 | EW-II | ≥15 ** | 10 | 0 | 0 | 1 | 2 | 2 | 1 | 5 | 0.1 | 1 | 1 | 1 | 100 |
注*(95%時(shí)間不低于17),**(95% 時(shí)間不低于13)
中國(guó)***電子***超純水GB/TII446.1-1997標(biāo)準(zhǔn) 指標(biāo)\***別 | EW-Ⅰ | EW-Ⅱ | EW-Ⅲ | EW-Ⅳ | 電阻率 MΩ,cm(25℃) | 18以上,(95%時(shí)間)不低于17 | 15,(95%時(shí)間)不低于13 | 12.0 | 0.5 | 全硅,***大值,μg/L | 2 | 10 | 50 | 1000 | >1μm微粒數(shù),***大值,個(gè)/mL | 0.1 | 5 | 10 | 500 | 細(xì)菌個(gè)數(shù),***大值,個(gè)/mL | 0.01 | 0.1 | 10 | 100 | 銅,***大值,μg/L | 0.2 | 1 | 2 | 500 | 鋅,***大值,μg/L | 0.2 | 1 | 5 | 500 | 鎳,***大值,μg/L | 0.1 | 1 | 2 | 500 | 鈉,***大值,μg/L | 0.5 | 2 | 5 | 1000 | 鉀,***大值,μg/L | 0.5 | 2 | 5 | 500 | 氯,***大值,μg/L | 1 | 1 | 10 | 1000 | 硝酸根,***大值,μg/L | 1 | 1 | 5 | 500 | 磷酸根,***大值,μg/L | 1 | 1 | 5 | 500 | 硫酸根,***大值,μg/L | 1 | 1 | 5 | 500 | 總有機(jī)酸,***大值,μg/L | 20 | 100 | 200 | 1000 |
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