Utah Reefs Homepage
  New Posts New Posts RSS Feed - Refractometers and Salinity Measurement
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Refractometers and Salinity Measurement
 Post Reply Post Reply
Author
  Topic Search Topic Search  Topic Options Topic Options
Boomer View Drop Down
Guest
Guest
Avatar

Joined: November 21 2006
Location: United States
Status: Offline
Points: 111 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Boomer Quote  Post ReplyReply Direct Link To This Post Topic: Refractometers and Salinity Measurement
    Posted: December 06 2006 at 12:36pm
http://reefkeeping.com/issues/2006-12/rhf/index.php

Note;

We have had countless reefers test their refracts using a std. Many but not all are right on using the std and need no re-calibration.
Want to Talk Chemistry ! The Reef Chemistry Forum




Back to Top
Adam Blundell View Drop Down
Presidency
Presidency
Avatar

Joined: June 24 2002
Location: Davis County
Status: Offline
Points: 18526 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Adam Blundell Quote  Post ReplyReply Direct Link To This Post Posted: December 06 2006 at 1:03pm
Best sentence in there
Now that such standards are both commercially available and can be DIY projects, many aquarists have come to find that their refractometers are not as accurate as they had assumed.
Adam
Come to a meeting, they’re fun!
Back to Top
Firefish View Drop Down
Guest
Guest
Avatar

Joined: September 13 2002
Location: United States
Status: Offline
Points: 933 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Firefish Quote  Post ReplyReply Direct Link To This Post Posted: December 06 2006 at 9:43pm
I don't like exposing my fish to stds either. Yuck! I think when a fish gets AIDS its called FAIDS.
5 gal fluval spec v http://www.utahreefs.com/forum/forum_posts.asp?TID=65727&KW=&PID=531710&title=my-new-little-one#531710 12 gallon jbj nanocube reef Stansbury Park (Tooele Area)
Back to Top
Boomer View Drop Down
Guest
Guest
Avatar

Joined: November 21 2006
Location: United States
Status: Offline
Points: 111 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Boomer Quote  Post ReplyReply Direct Link To This Post Posted: December 07 2006 at 12:43pm
Yup Adam, we have been trying to tell people that but they just won't listen, more of that assuming, just because it is a refract. Based on posts and tests it looks like around maybe 1/3 of them are off, reading to low usually. But the same thing applies to swing arms.

error in article

A new standard for hyposalinity can also be made by mixing two parts 35 ppt seawater and one part freshwater

Nope, should be one part 35 ppt and 2 parts FW

(1.026 +1.0 + 1.0) / 3 = 1.009 or 12 ppt (hypo)

(1.026 + 1.026 + 1.0 0 / 3 = 1.017 or 23 ppt

Edited by Boomer - December 07 2006 at 12:45pm
Want to Talk Chemistry ! The Reef Chemistry Forum




Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.141 seconds.