附1中国***电子***超纯水规格 GB/T11446.1-1997
| 电阻率 25℃ MΩ*cm | 硅 ≤μg/L | 铜 ≤μg/L | 锌 ≤μg/L | 镍 ≤μg/L | 钠 ≤μg/L | 钾 ≤μg/L | 氯 ≤μg/L | >1μm颗粒 ≤个/ml | 细菌 ≤个/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%时间不低于17),**(95% 时间不低于13)
中国***电子***超纯水GB/TII446.1-1997标准 指标\***别 | EW-Ⅰ | EW-Ⅱ | EW-Ⅲ | EW-Ⅳ | 电阻率 MΩ,cm(25℃) | 18以上,(95%时间)不低于17 | 15,(95%时间)不低于13 | 12.0 | 0.5 | 全硅,***大值,μg/L | 2 | 10 | 50 | 1000 | >1μm微粒数,***大值,个/mL | 0.1 | 5 | 10 | 500 | 细菌个数,***大值,个/mL | 0.01 | 0.1 | 10 | 100 | 铜,***大值,μg/L | 0.2 | 1 | 2 | 500 | 锌,***大值,μg/L | 0.2 | 1 | 5 | 500 | 镍,***大值,μg/L | 0.1 | 1 | 2 | 500 | 钠,***大值,μg/L | 0.5 | 2 | 5 | 1000 | 钾,***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 | 总有机酸,***大值,μg/L | 20 | 100 | 200 | 1000 |
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