I just ordered new CYA reagent and CYA standard from TFTkits and none of the containers show an expiration date. Why's that? I expected that they'd be dated. How would one know how old they are and when they expire?
That's a good question on expiration dates. The R-0013 Taylor bottles do have dates on them and the TFT reagents are the same as Taylor. I wonder if it's some obscure law that certain items need dates. I got a salt grinder from Costco with an expiration date on it. Take millions of years old salt, put it in a container and it now expires.