Anyone use MoreBeer calibration solution

[h22lude]

My solution has expired from Hanna so I'm trying to figure out what to do next. I like the Hach pillows because they don't expire but they are expensive. I saw MoreBeer sells 4oz of calibration solution but it expires in 3 months. Has anyone used it before?

https://www.morebeer.com/products/ph-calibration-solutions-set-2.html

 

[ajdelange]

Can't help with the MoreBeer but the Hach Pillows definitely do have an expiration date. Check the label carefully and you'll find it.

 

[h22lude]

Can't help with the MoreBeer but the Hach Pillows definitely do have an expiration date. Check the label carefully and you'll find it.

I don't have them. Trying to decide what to buy. What is the expiration date usually? I'd guess more than 3 months.

 

[ajdelange]

Yes, it's more than 3 months but not all that long. I have some with me but they are in a 50 mL centrifuge tube, not the box they came in so I can't check. Now I generally ignore the expiration date on the pillows because the powder is sealed away from the atmosphere unless I am doing some work that's going to be published.

 

[Bilsch]

Here is a pic of the label on the latest box I bought. According to the code it was made on May 05, 2015 and exp is May 2017.
Wait a minute.. I ordered this from Amazon in 06/2017
Figures.

 

[agrazela]

This isn't food or an eyewash bottle. I wouldn't worry too much about buffer expiration dates unless you absolutely need to know pH to the 0.01 unit, or you are a professional operation that requires traceability.

 

[h22lude]

$6.89 for the two solutions is really cheap but 50 pillows that last 2 years I think is the better deal. Plus I know Hach is a well known company for this type of product.

 

[ajdelange]

I think so and I would have no qualms in using them for 3 or even 4 years except for 'research' mode measurements. But heed the message from Bilsch and get them directly from Hach.