pH solutions OR tablets

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coxy123
Posts: 18
Joined: 06 Feb 2012, 10:19
State/Location: NSW

pH solutions OR tablets

Post by coxy123 »

I was wondering how many of you make the pH solutions up using the tablets, and how many buy the solution already made up? We bought solutions last year, but after only using about 200ml of the 500ml bottle, they are all now out of date.
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lada
Posts: 1024
Joined: 29 Jun 2006, 10:00
State/Location: NSW

Re: pH solutions OR tablets

Post by lada »

Always use tablets, for the same reason. Tablets I have, make up 30 ml pH solution way enough for calibration, and really, our students use it once a year. Tablets last much longer.
Lada
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coxy123
Posts: 18
Joined: 06 Feb 2012, 10:19
State/Location: NSW

Re: pH solutions OR tablets

Post by coxy123 »

Thank you for that information. I will order them today!!
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