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Phone
1502159571815121127657
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Address
No. 55 Huiyuan Road, Jiading Industrial Zone, Shanghai
Shanghai Xuansheng Scientific Instrument Co., Ltd
1502159571815121127657
No. 55 Huiyuan Road, Jiading Industrial Zone, Shanghai
| Chinese National Laboratory Water Standards (GB6682-92) | ||||
| name | ||||
| PH value range 25 ℃ | -- | --- | 5.0-7.5 | |
| Conductivity ms/m.25 ℃ | ≤ | 0.01 | 0.10 | 0.50 |
| Conductivity us/cm25 ℃ | ≤ | 0.1 | 1 | 5 |
| Electrical resistivity M Ω CM.25℃ | ≥ | 10 | 1 | 0.2 |
| Oxidizable substances are measured in mg/L at (0) | < | - | 0.08 | 0.40 |
| Absorption at 254nm, 1cm optical path length | ≤ | 0.001 | 0.01 | - |
| Evaporation residue 105 ± 2 ℃ mg/L | ≤ | - | 1.0 | 2.0 |
| Soluble silicon is calculated as SiO2 in mg/L | < | 0.01 | 0.02 | - |