pH buffer source

[reisjdmd]

i use the small pH meter and love it. howover, the small buffer pouches have to be ordered online, and the shipping costs are high.
deos anyone have any thougths as to what kind of business would carry somthing like these buffer pouchesin a large city?? my wine supply shop does not carry this type of thing.
any thoughts on a homemade standard that i could use to calibrate the meter??
could commercial distilled water be used to calibrate the higher number??
any thoughts on somthing for the lower number, somthing like a constant volume of commercial vinegar in a set volume of distilled water??
if i get within 0.1-o.2 pH units i will be happy, since i have a terrible time using the acid test kit for red wine.

 

[Tom]

I got 16 oz of Ph 4.01 from EBAY

 

[smurfe]

You might call George and ask him if he has it. I just looked in the catalog and only see the pouches but I bought big bottles of the solutions a while back. It has been a couple years or better though. He may only stock the pouches now.