Hanna Checker Calcium (exp date)

[chipchipbro]

hey guys

I just found a Hanna Checker Calcium and saw that the exp. dat for the Reagents was 2019.

Well, ATI and an LFS told me thats no problem.

Do you have an idea if that is really true and I can use it?

 

[MnFish1]

I would not use it unless they can explain to you why it’s safe. Either way you will question every result that seems a little off perhaps? Hope this helps

 

[chipchipbro]

and what could be the problem using it?

 

[MnFish1]

Welll

1. There is an expiration date for a reason.
2. If you want to ignore that all good like I said. Why do you think there is an expiration date??
3. I check my calcium every 3 months or so - so - I guess there is no problem - until you get some kind of funky reading. Testing calcium EDIT - OFTEN - is a waste of money IMHO - Thus - you have a test with an expiration date in 2019. Not worth much - but go ahead test it.

 

[Randy Holmes-Farley Verified Community Expert]

and what could be the problem using it?

Incorrect values.

 

[chipchipbro]

OK, i tested it and I must say the test is very odd.
I did the test 3 times with results: 511, 487 and 439

Well, thanks for your help guys. I will just buy new ones