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Author: Subject: Measuring pH
Lion850
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[*] posted on 26-6-2020 at 13:56
Measuring pH


Hi members I want to start checking the pH of solutions more often. What do you use for checking pH? I have a test kit designed for pools but was wondering if there is something more accurate but still economical cost.
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morganbw
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[*] posted on 26-6-2020 at 13:59


for convenience I use pH paper. I worked for 20+ years in an industrial setting where we used pH meters. I do think that for an amatuar that is over kill and the pH papers are sufficient on an amatuar basis. I think that normally it is just as accurate as well.
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Tsjerk
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[*] posted on 26-6-2020 at 14:00


I use something like this.
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B(a)P
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[*] posted on 26-6-2020 at 15:36


I have an older version of this one that I use for anything where I need some accuracy. Otherwise I use pH paper.
https://intl.hannainst.com/products/testers/ph-orp/hi98128-p...
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Dr.Bob
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[*] posted on 26-6-2020 at 16:37


I iwas going to show an example of some pH paper test strips like I have, but with free shipping, I can't really beat this price below, $7.65 for 100 strips, with free shipping. But I can offer $7 for anyone already buying stuff, but it would cost me $3-4 to ship it, so too expensive to ship one, but no extra weight on an existing order.

https://www.walmart.com/ip/Strips-Tester-Aquariums-Hydroponi...
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draculic acid69
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[*] posted on 26-6-2020 at 17:55


I found pH test strips can't be used effectively with plant based extractions as they colour the strips brown/black and then the colour of the strip can't be seen through it so a meter is required for accuracy.if not doing plant extracts pH strips are fine.
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draculic acid69
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[*] posted on 26-6-2020 at 18:19


Litmus paper should be enough to do everything u want to measure and in combination with the pool strips will be fairly accurate.

https://www.wish.com/c/5a06a373d20e931250f28831?hide_login_m...

There very cheap

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Eddie Current
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[*] posted on 27-6-2020 at 14:41


Quote: Originally posted by B(a)P  
I have an older version of this one that I use for anything where I need some accuracy. Otherwise I use pH paper.
https://intl.hannainst.com/products/testers/ph-orp/hi98128-p...


How do these pen meters hold up in corrosive chemical solutions?
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B(a)P
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[*] posted on 27-6-2020 at 17:34


Quote: Originally posted by Eddie Current  


How do these pen meters hold up in corrosive chemical solutions?


I don't use mine on anything too corrosive, because I would imagine not well.
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