Hanna Marine NO3 HR Reagent Lot H017 Bad?

[Dan_P]

Just a heads up.

Test reagent HI782 lot H017 expiration date 09/2026 could be bad. I have four boxes of the reagent and none work. I tested the reagent against a standard of 5 and 10 ppm NO3 made from Hach multiparameter reference standard. The developed test solutions were colorless. I tested the 5 ppm standard with the LR NO3 Checker and obtained the expected results.

I contacted Hanna technical support.

EDIT: Customer service is sending me new reagents. This issue was resolved in <8 hours!

 

[SPR1968]

That’s good to know is sorted out

 

[shakacuz]

were the reagents purchased through them, or another vendor? in case i run into the same issue this information would be good to have.

 

[Randy Holmes-Farley]

Thanks for the info.

Wonder how many folks will make wrong decisions on their reefs because of the bad reagents.

 

[LeftyReefer]

So these "suspect" reagents created no color change?

So then would it be safe to assume if you are getting a color change with your current reagents, then they are probably OK?

My current box of reagents seems to be fine, as they are creating a color change, but I have 2 more unopened boxes on my shelf that I better check...