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24-08-2011, 08:55 AM | #1 |
Arofanatic
Join Date: Dec 2010
Posts: 198
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Where to buy pH calibration solutions in east?
Dear sifus,
Using a Dymax P20 test pen which I suspect is out of calibration because it kept giving high readings for my pond water. Where can I buy the pH 4 and 7 calibration solutions in the east side of Singapore? Many thanks in advance. |
24-08-2011, 11:43 AM | #2 |
Endangered Dragon
Join Date: Sep 2010
Posts: 5,188
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maybe u can try OTF? or there are many more shops/farms in pasir ris farmway as well.
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24-08-2011, 12:20 PM | #3 |
Dragon
Join Date: Mar 2011
Posts: 1,276
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Pretty sure you'll be able to find a shop at Pasir Ris farmway which sells them. Try AquaEmpire?
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24-08-2011, 06:39 PM | #4 |
Arofanatic
Join Date: Dec 2010
Posts: 198
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Thanks bros isaacyeo and Sunday.
OTF and Mainland only has the pH 7 one. Got both pH 7 and 4 buffer solutions from Sam's Pet @ Marine Parade. By the way read somewhere that can use Evian as a cheaper alternative for pH 7 buffer but may not be as accurate as it is +/- 0.2 |
29-08-2011, 10:01 AM | #5 |
Endangered Dragon
Join Date: Sep 2010
Posts: 5,188
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29-08-2011, 10:13 AM | #6 | |
Arofanatic
Join Date: Dec 2010
Posts: 198
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Quote:
http://www.arofanatics.com/forums/sh...ighlight=evian |
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29-08-2011, 01:49 PM | #7 |
Dragon
Join Date: Jan 2008
Posts: 2,923
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Where you staying by the way? Most reputable shops will carry ph 7 solution.
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29-08-2011, 07:36 PM | #8 |
Arofanatic
Join Date: Dec 2010
Posts: 198
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29-08-2011, 10:15 PM | #9 |
Guest
Posts: n/a
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have you considered e-bay?
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