|
Your questions about pH and Redox probes for swimming pools ph-redox-pool.com |
|
 | bot: Question FR Dec 21, 2022, 11:42 am . If you have any questions, please let us know. |
 | Dec 21, 2022, 11:43 am hello, for Redox buffer solutions, what is the uncertainty that we can accept? THANKS |
 | Olivier Michaud Dec 21, 2022, 11:45 am Our solutions are at +/- 5 mV, on the other hand at the measurement level +/- 50 mV without worries |
 | Dec 21, 2022, 11:46 am ok, the same value (+/- 50mV) for +220mV and +468 mV? |
 | Olivier Michaud Dec 21, 2022, 11:47 am |
 | Olivier Michaud Dec 21, 2022, 11:47 am Redox measurement is very volatile |
 | Dec 21, 2022, 11:49 am What does very volatile mean? |
 | Olivier Michaud Dec 21, 2022, 11:50 am The measured values may vary frequently. What is your concern? |
 | Dec 21, 2022, 11:52 am My concern is that when I test buffer solutions, my values have moved constantly. and sometimes I have values +60mv compared to the reference value |
 | Dec 21, 2022, 11:53 am so I don't know under what conditions I can have stable values |
 | Olivier Michaud Dec 21, 2022, 11:55 am Do this: Leave the probe soaked for 4 hours in the standard solution, and come and see the value every hour. See if it moves. If it still moves then it may be a tired probe! a probe is a battery, if it no longer has enough energy then it gives very unstable values. |
 | Dec 21, 2022, 11:58 am ok I will try your idea, thank you very much for your advice, I wish you a great day. |
 | Olivier Michaud Dec 21, 2022, 11:58 am You are welcome, do not hesitate to contact us! Good day |
 | Dec 21, 2022, 11:59 am Yes, I will come back to you. THANKS |
 | Dec 21, 2022, 12:11 pm Hello again, excuse me, I have a question just arrived |
 | Olivier Michaud Dec 21, 2022, 12:11 pm |
 | Dec 21, 2022, 12:13 pm The interval that you told me +/-50mV is applied in all measurement conditions (I mean in a swimming pool as in the lab for a small 250ml flask or a 2l, 5l, 20l fermenter? |
 | Olivier Michaud Dec 21, 2022, 12:14 pm No, this is what I observe in the case of swimming pools |
 | Dec 21, 2022, 12:16 pm Ah ok, so if I test my redox probes with the buffer solutions at +220mV and +468mV the range of +/-50mV is still good? |
 | Olivier Michaud Dec 21, 2022, 12:17 pm Yes . but you also need to calibrate |
 | Dec 21, 2022, 12:18 pm Yes I calibrate before measuring, just to see if my probes are still good |
 | Olivier Michaud Dec 21, 2022, 12:19 pm |
 | Dec 21, 2022, 12:19 pm |
|
|
| |
|