|
12/06/2017, 03:16 PM | #1 |
Registered Member
Join Date: Oct 2014
Posts: 104
|
Hanna Alk Checker Syringe
http://www.reefcentral.com/forums/sh....php?t=2092674
Hi, I bought the dkh checker recently and a bit confused on the filling of the 1ml reagent. As per the thread linked. The Hanna rep. advises filling it as per the picture. I just want to confirm the correct piston position. The syringe itself is a bit confusing. At the bottom of the syringe is the 1.0ml and at the top is 0.1ml so its inverted. Above the 0.1ml line is a few more graduations which im assuming is 0.0ml. As per the pic in the linked thread the piston position when using the tip included is at the 0.0ml line. Had i not looked closely i would have probably read the 0.1ml as being the line to draw at. In the linked thread the pic is the same syringe that was included. A bit confusing as in some videos it appears the syringe says 1.0ml at the top of the syring like how any normal syringe is graduated. |
12/06/2017, 03:43 PM | #2 |
RC Mod
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
|
The picture shows a syringe drawn up to its capacity, but I think the text with the picture is a bit off, and the syringe should contain 1.0 ml of titrant, as you've indicated. Yes, the lines above the 0.1 level should take you to zero.
__________________
Jonathan Bertoni |
12/06/2017, 11:41 PM | #3 |
Registered Member
Join Date: Oct 2014
Posts: 104
|
Ok, thanks so the piston position at "0.0ml" should be the required 1.0ml reagent to perform the test.
|
12/07/2017, 06:53 PM | #4 |
RC Mod
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
|
Yes, that's correct.
__________________
Jonathan Bertoni |
12/08/2017, 06:42 AM | #5 |
Registered Member
Join Date: Mar 2015
Location: Upstate NY
Posts: 5,313
|
Glad I clicked on this thread.
I just quickly looked at the syringe and assumed the 1 was 1ml when in fact it was .01. I didn't realize the syringe was backwards from most others. I've only been adding .9ml of titrant.
__________________
80G SCA Build: http://reefcentral.com/forums/showthread.php?t=2560256 Originally posted by der_wille_zur_macht: "He's just taking his lunch to work" |
12/09/2017, 09:06 AM | #6 |
Registered Member
Join Date: Oct 2014
Posts: 104
|
Yeah, does make a marginal difference in the reading.
Thanks all. |
12/12/2017, 03:15 PM | #7 |
Registered Member
Join Date: Dec 2002
Location: Madison, WI
Posts: 2,055
|
Whawhut!? I've also been only using .9 ml all this time
|
12/14/2017, 03:10 AM | #8 |
Registered Member
Join Date: Nov 2017
Posts: 54
|
|
12/14/2017, 06:55 AM | #9 |
Registered Member
Join Date: Dec 2002
Location: Madison, WI
Posts: 2,055
|
Right? I had a good laugh, what a dunce. It's all good and stable, just a little off what I thought it's been.
|
Thread Tools | |
|
|