Calibration Fluid

[FirstContact]

Received a set of calibration fluid from GHL last December. None of the containers have expiration dates on them. Are the solutions good forever? How do I know one doesn't expire at a different month or year from another?

 

[AZMSGT]

@Vinny@GHLUSA @Ditto

Perhaps they can answer your question.

 

[FirstContact]

I sent Vinny an email, but it’s Mother’s Day and Sunday. I thought someone here may have had the same experience :-)

 

[ingchr1]

The fluids that came with my P4 (pH, conductivity, ORP) had expiration dates, the fluids that came with my Wi-Fi Mini (pH only) do not.

Appears that the expiration dates were removed somewhere along the way.

Any pH solution I've had always has an expiration date.

My Pinpoint ORP solution says it remains accurate for 60 to 90 minutes after opening.

I'm not sure that conductivity solution would go bad.

Might be a good question for the chemistry section of the forum.

 

[Ditto]

Great question I am not sure. I assume 6 months to 1 year after opening. But without an expiration on them not sure..