CBE changes when I change the units

[shensel]

Hello,

 

When I calculate the CBE with a sample that has alkalinity as ug/L as CaCO3, it gives a different result compared to the same sample with alkalinity as mg/L as CaCO3 (same concentrations). Is this a bug or am I missing something? Example GSS files are attached.

 

Thanks,

Scott Hensel

CB Test_ug.L.gss CB Test_mg.L.gss

[Brian Farrell]

Hi Scott,

That looks like a bug in GSS. It looks like GSS isn't including the unit when it prepares input for SpecE8, which does the calculations. As a result, SpecE8 is using the specified number with mg/kg_as_CaCO3 units instead of whatever you specified. Until we can release a fix, you should use the default unit for carbonate alkalinity. Thanks for bringing this to our attention. I apologize for the error.

Regards,

Brian Farrell
Aqueous Solutions LLC

[shensel]

 Thanks Brian. A quick update: this doesn't always seem to be the case, though I'm not sure why. I've attached GSS examples of the unit change working correctly. I'll still proceed with the default units for now, but maybe this will help your troubleshooting.

CB Test2_ug.L.gss CB Test2_mg.L.gss

[Brian Farrell]

Hi Scott,

FYI, we're testing a potential fix for this. We'll give you an update when it becomes available. Thanks for your patience.

Regards,

Brian

[shensel]

Hi Brian,

I appreciate you keeping me informed.

 

Thanks,

Scott

[Brian Farrell]

Hi Scott,

Thanks again for bringing this issue to our attention. To get you and other affected users up and running now, we have created a release candidate installer. To download, use the link below.

GWB17.0.2rc2_setup.exe

The fix will be included in the next maintenance release. Please let us know if you run into any other issues with the release candidate.

Regards,

Brian

[Jia Wang]

Hello Scott,

The issue incorrect alkalinity units used for calculating analytes is now fixed in maintenance release 17.0.2. If automatic update is enabled, you should be prompted to update in the next few days when you open the GWB dashboard. You can also manually update by going to check for updates under the "Help" menu of any app or on the Support pane of the GWB dashboard.

Best regards,
Jia

 

[shensel]

Fantastic! Thanks to you both.

[Jia Wang]

You're welcome Scott. We hope you're enjoying the software.

Best regards,
Jia