Joined: 27 Dec 2005 Posts: 1851 Location: Melbourne, Australia
Posted: Sun Jul 09, 2006 3:14 am Post subject: Litmus Strips
Does anyone know what they test for pH, in Hospitals ?
I figure it's gotta be something more than just pee in a jar !
In any case, my young one, in her usual manner, warranted a visit, and whilst we were there, I 'acquired' a box of pH strips. They've got a hell of a range, 2.0 - 9.0. 0.5 increments.
Takes all of 10 secs, from box to reading. Could almost be worth converting from liquid Test Kits.
Anyhow, Large Tank read 6.5, about spot on. Small Tank 6.0, a water change due there.
Joined: 09 Aug 2006 Posts: 36 Location: The Big Apple, New York City
Posted: Mon Aug 21, 2006 2:25 pm Post subject:
I have to say that those test are not really accurate as they will be generally be off by sometimes as much as 2.0 points compare to a true test kit. I use a swimming pool test kit for my water and never had any problem. I work as a pool facilities operator so having use both systems I can tell you that the litmus isn't really the way to go. Have you compared results from both?
_________________ Good advice is always certain to be ignored, but that's no reason not to give it.
Joined: 27 Dec 2005 Posts: 1851 Location: Melbourne, Australia
Posted: Mon Aug 21, 2006 4:55 pm Post subject:
No, not at the time.
But I knew our tap water is coming in at 6.8. The large tank has a bit of yeasty CO2, so I expected it to be down a few points.
The Small tank was a bit of a surprise, but it was water change time anyway, so I didn't bother with it too much. Maybe that's your error allowance, Commander?
If I remember on Wednesday, I'll do a comparison set, when I do the next water change.
Joined: 20 Nov 2005 Posts: 148 Location: Connecticut, USA
Posted: Tue Oct 17, 2006 12:03 pm Post subject:
I don't see how the hospital's pH strips could be very inaccurate. I'm sure the hospitals need percise measurements and acurate readings. If a test result is off, it could cause problems if the patient is given the wrong medicine or something. My mom works in a hospital. Maybe I could ask her to bring some of the strips home so I could test them out too. All I have currently is a liquid pool water tester (the different shades of red (from the phenol red) are hard to tell apart) and a (nonelectrical) pH computer which is way off (and is also at least 20 years old.) I could try some of the hospital's strips and see how they compare to my other ones.
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